Mushrooms resembling M. adonis include M. acicula, M. aurantiidisca, and M. rosella.
|
|
Acicula (singular: aciculum) are strong, stout internal chaetae that provide support to parapodia in polychaete annelids. Microscope photograph of a parapodium from a specimen of Arctonoe sp. showing the internal acicula that support the two lobes of the parapodium.
|
|
Acicula parcelineata is a species of small land snail with an operculum, a terrestrial gastropod mollusc in the family Aciculidae.
|
|
Acicula hausdorfi is a species of very small land snail with an operculum. It is a terrestrial gastropod mollusk in the family Aciculidae.
|
|
The specific epithet acicula is derived from the Latin word meaning "small needle". The mushroom is commonly known as the "orange bonnet", or the "coral spring Mycena".
|
|
Acicula palaestinensis is a species of very small land snail with an operculum, a terrestrial gastropod mollusk in the family Aciculidae. This species is endemic to Israel.
|
|
Bythiospeum acicula is a species of very small freshwater snails that have an operculum, aquatic gastropod mollusks in the family Hydrobiidae. This species is endemic to Germany.
|
|
M. acicula is smaller than M. adonis, and has a deep orange-red cap. There are several other mycenas with which Mycena adonis could be confused. is typically a smaller mushroom with a deep orange-red cap rather than the typical bright salmon-pink color of M. adonis. Since the colors and sizes of M. acicula and M. adonis are similar, a microscope is needed to reliably distinguish between them, with spore size and shape being different.
|
|
Journal of Conchology 41(1): 91-109.Skvortsova V. & Balashov I. (2019). "Land snail Acicula parcelineata (Architaenioglossa: Cyclophoroidea: Aciculidae) in Ukraine: distribution, variability, habitat preferences and conservation status". Ruthenica 29(2): 94-102.
|
|
Cecilioides acicula, common name the "blind snail" or "blind awlsnail", is a species of very small, air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Ferussaciidae. This is a subterranean species.
|
|
Hypatima acicula is a moth in the family Gelechiidae. It was described by Kyu- Tek Park and Margarita Gennadievna Ponomarenko in 1999. It is found in Thailand. The length of the forewings is about 13 mm.
|
|
The gills are pale yellow with a whitish edge. Several other Mycena species look similar, but may be distinguished by differences in size and/or microscopic characteristics. M. acicula is considered inedible because of its small size.
|
|
Lepidonotus oculatus and is a Museums Victoria specimen. Microscope photograph of a parapodium from a specimen of Arctonoe sp. showing the internal acicula that support the two lobes of the parapodium. This parapodium is from a Museums Victoria specimen.
|
|
Prosphaerosyllis battiri shows a solitary, slender and acuminate acicula. The pharynx is long, spanning through approximately 4-5 segments. Its pharyngeal tooth is large and rhomboidal, located in its anterior half. Its proventricle spans 3 segments, with about 26 muscle cell rows.
|
|
Posterior parapodia have 4 compound chaetae each. The simple dorsal chaetae from chaetiger 1 is smooth, slender and unidentate. Salvatoria pilkena shows ventral simple chaetae only on most posterior chaetigers, which are sigmoid, smooth and bidentate. Its acicula is solitary and acuminate.
|
|
This species has been described as "a delight to behold", but "one usually has to get down on hands and knees to find it!" The fruit bodies of Mycena acicula are considered inedible, as they are too small and insubstantial to be considered for consumption.
|
|
Natrolite showing acicular crystal habit __NOTOC__ Acicular, in mineralogy, refers to a crystal habit composed of slender, needle-like crystals. Crystals with this habit tend to be fragile. Complete, undamaged acicular specimens are uncommon. The term "acicular" derives from the Late Latin "acicula" meaning "little needle".
|
|
The number of posterior compound chaetae declines to a number of 5 on each posterior parapodium. Erinaceusyllis hartmannschroederae shows dorsal simple chaetae on anterior parapodia from chaetiger 1, provided sometimes with marginal spines. The ventral simple chaetae are slender and unidentate. Its acicula is solitary and acuminate.
|
|
The blades of these compound chaetae possess short, marginal spines which are longer on the most dorsal chaetae. Sphaerosyllis bardukaciculata shows four simple chaetae on the posterior parapodia. It counts with a single acicula, bent distally to a right angle. The pharynx spans approximately three segments.
|
|
Acicula fusca is a species of land snail in the family Aciculidae. It is known by the common name point snail. It is native to Europe, where it occurs in Britain, Ireland, France south to the Basses Pyrénées, Spain, Belgium, and north-west Germany. Commonest in the west.
|
|
Erinaceusyllis kathrynae shows dorsal simple chaetae from chaetiger 1, provided sometimes with short marginal spines. The ventral simple chaetae are slender and unidentate, arising from the midbody. Its acicula is solitary and acuminate, with a rather long and filiform tip. The pharynx is slender and spans approximately 3 segments.
|
|
The ventral simple chaetae on posterior parapodia are smooth, sigmoid and distally hooked, provided with a long subdistal spine. Its parapodia count with a single acicula each, bent to a right angle. The pharynx spans approximately 3 segments. Its pharyngeal tooth is probably located on its anterior rim.
|
|
Acicula norrisi is a species of land snail in the family Aciculidae. It is native to Gibraltar. Some shells were recently found on the nearby Spanish mainland, indicating that there may be several populations there, as well. Live specimens are not known; the species is known only from shell specimens.
|
|
Erinaceusyllis cirripapillata shows simple and unidentate, dorsal chaetae from chaetiger 7, showing marginal spines; its ventral simple chaetae are slender and smooth, present on the posterior parapodia. Its acicula is solitary and acuminate. The pharynx is slender, spanning 3 segments. Its pharyngeal tooth is located on the opening of the pharynx.
|
|
The dorsal simple chaetae from chaetiger 1 are unidentate and show long marginal spines. Its ventral simple chaetae on the posterior parapodia are sigmoid, smooth and unidentate. Its acicula is solitary, with tips bent to a right angle. The pharynx spans approximately 3 segments and is relatively slender, its pharyngeal tooth located anteriorly.
|
|
Parapodia with elongate acicular lobes are present, with both acicula penetrating the epidermis in notopodium but not neuropodium. The notochaetae are stout, with few rows of spines and slightly notched tip. The neurochaetae are more slender and more numerous, have faint rows of spines distally, and feature minutely bidentate or simple (unidentate) tips.
|
|
Body dorsoventrally flattened, short, with 26 segments and 12 pairs of elytra on segments 2, 4, 5, 7, 9, 11, 13, 15, 17, 19, 21, and 23. Prostomium with three antennae; lateral antennae continuous with prostomium, laterally to median antenna. Parapodia with elongate acicular lobes with both acicula penetrating epidermis. Notochaetae slender and densely serrated.
|
|
Posterior parapodia, on the other hand, possess 4 compound chaetae each, with unidentate blades provided with short spines as well. The dorsal simple chaetae from the proventricular segments are unidentate and show marginal spines. Its ventral simple chaetae on the posterior parapodia are sigmoid, smooth and unidentate. Its acicula is bent to a right angle.
|
|
Parapodia with elongate acicular lobes with both acicula penetrating epidermis; neuropodia with a supra-acicular process. Notochaetae stout with distinct rows of spines and blunt tip. Neurochaetae more numerous and more slender, with distinct rows of spines distally and exclusively unidentate tips. The genus was described in 1865, with a modern redescription in Barnich & Fiege (2010).
|
|
Erinaceusyllis ettiennei shows simple, dorsal chaetae from midbody, unidentate and smooth; its ventral simple chaetae being slender and present on the posterior parapodia. Its acicula is solitary and acuminate, with tiny subdistal spines present. The pharynx is long and slender, spanning 4 segments. Its pharyngeal tooth is small and is located near the opening of the pharynx, without papillae on its anterior rim.
|
|
The shell is yellowish white with irregular light chestnut undulating longitudinal stripes, more or less intensified into revolving bands. The size of the shell varies between 1.9 mm and 6.2 mm. Compared to Eulimella acicula, the shell of Eulimella ventricosa is thinner, with tumid whorls and a deeper suture. The shell is slightly striated longitudinally, with the body whorl ventricose.
|
|
Salvatoria californiensis has similar chaetae, with shorter spines and less developed teeth. Its acicula lacks a defined acute tip, and the proventricle is quite shorter, running through 5 segments in S. koorineclavata, with fewer rows of muscle cells (21–22 in koorineclavata). The species name comes from an Aboriginal word, Koorine, meaning "daughter", due to the similarity of the Australian species to the European species of S. clavata.
|
|
Posterior parapodia, on the other hand, possess 6 compound chaetae with thicker shafts and blades with dorsoventral gradation in length as well. The dorsal simple chaetae from chaetiger 1 are unidentate and show 4 to 5 short serrations. Its ventral simple chaetae on each parapodium from about chaetiger 18 are sigmoid and smooth. Its acicula is solitary on each parapodium, having an enlarged tip which is also rounded.
|
|
First named Agaricus acicula by the German scientist Jacob Christian Schäffer in 1774, the species was also referred to as Agaricus miniatus by another German, naturalist August Batsch. It was given its current name in 1871 by Paul Kummer. Rolf Singer transferred the species to the genera Hemimycena and Marasmiellus, but the binomials resulting from these transfers are now considered synonyms. The fungus is classified in the section Aciculae of the genus Mycena.
|
|
Its anterior parapodia count with about 9–10 compound chaetae, exhibiting dorsoventral gradation in length, being 26µm above and 12–13 µm below. The number of posterior compound chaetae declines to a number of 5–6 on the posterior parapodia. Salvatoria koorineclavata shows ventral simple chaetae on the majority of posterior parapodia of some specimens. Its anterior parapodia possess 2 aciculae each, one straight and one acuminate, while simultaneously showing solitary acicula in its midbody.
|
|
Anteriorly, the parapodium exhibit two aciculae, one distally bent at a right angle, with an acuminate tip, the other being straight and blunt; posterior parapodium shows only one acicula as previously described. Its pharynx occupies three chaetigers, with a width spanning more than ¾ of the width of the proventricle. Its pharyngeal tooth is located on its anterior margin, surrounded by a crown of soft papillae. The proventricle possesses 15 to 17 muscle cell rows.
|
|
Mycena acicula, commonly known as the orange bonnet, or the coral spring Mycena, is a species of fungus in the family Mycenaceae. It is found in Asia, the Caribbean, North America and Europe. The fruit bodies, or mushrooms, of the fungus grow on dead twigs and other woody debris of forest floors, especially along streams and other wet places. They have small orange-red caps, up to in diameter, held by slender yellowish stems up to long.
|
|
Parapodia in polychaetes can be uniramous (consisting of one lobe or ramus) but are usually biramous (two lobes or rami). In the latter case, the dorsal lobes are called notopodia and the ventral lobes neuropodia. Both neuropodia and notopodia may possess a bundle of chaetae (neurochaetae and notochaetae respectively), which are highly specific and greatly diversified. A single stout internal chaeta, called an acicula, may be present in each lobe, which are used to support well-developed parapodia.
|
|
Body long, with numerous segments (50 to more than 100) and numerous pairs of elytra on segments 2, 4, 5, then on alternate segments to 23 and on every third segment thereafter. The prostomium is anteriorly rounded (without peaks) and the lateral antennae are inserted terminoventrally. Parapodia with elongate acicular lobes with both acicula penetrating epidermis. The notochaetae are stout, with distinct rows of spines and blunt tips; the neurochaetae are unidentate (lack a secondary tooth at the tips) (see Barnich & Fiege, 2003 for more detailed diagnosis).
|
|
Body long, with 100 or more segments and numerous pairs of smooth translucent elytra on segments 2, 4, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 26, 28, 29, 31, 33 then alternating segments to the end of the body. The prostomium is rounded anteriorly (lacking peaks) and the lateral antennae are inserted terminoventrally. Parapodia with both dorsal (notopodial) and ventral (neuropodial) acicula penetrating epidermis. The notochaetae are few in number and more slender than the neuroochaetae both notochaetae and neuroochaetae have minutely notched tips (see Hanley, 1989 for detailed diagnosis).
|
|
Body short, with up to 50 segments and 18 pairs of elytra on segments 2, 4, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 26, 29, 32, 34, 35, and 38. The prostomium has a pair of anterior peaks and the lateral antennae are inserted terminoventrally. Parapodia with both dorsal (notopodial) and ventral (neuropodial) acicula penetrating epidermis. The notochaetae are stout, with numerous rows of spines; the neurochaetae are more slender and include both unidentate (lack a secondary tooth at the tips) and bidentate forms (see Barnich & Fiege, 2010 for detailed diagnosis).
|
|
Typical growth habit The fruit bodies of Mycena acicula grow singly, in groups, or somewhat clustered on debris in wet places, especially along streams or the borders of swamps. The appearance of the fruit bodies is not significantly influenced by the effect of rainfall, perhaps because "such minute fungi are largely determined by the microenvironment prevailing under dense vegetation, etc., which is no doubt less affected by recent rain than more exposed situations." The fungus is widely distributed throughout the eastern United States and Canada and occurs in Washington, Oregon, and California along the Pacific Coast.
|
|
This is today considered a synonym of Deroceras panormitanum, which Lessona and Pollonera had already described in 1882, also from Palermo. In 1890, another German, Karl Flach, better known as an entomologist, named a variety of Pupa biplicata as "Pollonerae", having discussed Pollonera's recent work on this species. The Swedish malacologist Carl Westerlund in 1892 named a soil-living snail from Malta Cionella pollonerae; this is today considered a synonym of Cecilioides acicula. Two expeditions led by Borelli to Paraguay and Argentina yielded mollusc collections that Giuseppe Paravicini (of Milan) and then César Ancey (working in Algeria) wrote up in 1894 and 1897.
|
|
Opuntia aciculata, also called Chenille pricklypear, old man's whiskers, and cowboy's red whiskers, is a perennial dicot and an attractive ornamental cactus native to Texas. It belongs to the genus Opuntia prickly pear cacti. It is also widespread in Nuevo Leon, Tamaulipas (northern Mexico). It was reported from Nuevo León, Mexico, according to D. Weniger in 1970. The specific name aciculata derives from many sources: the Latin word acicula which means “a small pin for a headdress”, and the adjectival suffix for nouns atus, meaning possessive of or likeness to something (with, shaped, made), while for verb participles it means a completed action.
|
|
Mycena adonis, , and are larger species of the section Adonidae in the genus Mycena. In that section, among other differences, the hyphae of the cortical layer (the outer layer of tissue) of the stem are smooth. is similar in appearance to M. acicula, but the cap is yellower, the gills are broadly adnate or decurrent with a short tooth, the gill edge is orange to bright yellow, and the stem is dry, not sticky. The hyphae of the cortical layer of the stem are smooth and not embedded in gelatinous matter, and in European collections the basidia are two-spored and do not have clamps.
|
|
Species of Sphaerosyllis, however, always exhibit papillae on the pharyngeal opening, their pharyngeal tooth is conical and is always located on or very near to the anterior margin of the pharynx. They usually count with a short proventricle, itself provided with large muscle cell rows, large posterior acicula (which is distally bent at 90°), blades of compound chaetae which are short and unidentate, and offspring developing ventrally, females without capillary notochaetae, only present on males. Sphaerosyllis horrockensis, Sphaerosyllis belizensis, and Sphaerosyllis centroamericana were transferred to Erinaceusyllis under these distinguishing characteristics. At the same time, Prosphaerosyllis is close to Erinaceusyllis, but its species' pharyngeal teeth are rhomboidal to oval and located near the middle of their pharynges; also their antennae are short, tentacular and their dorsal cirri have a bulbous cirrophore and retractile cirrostyle.
|
|