Arcyria denudata : a. Sporangia, b, c. Capillitia, d, e. Spores, b-d. Mounts are prepared in cotton blue-lactic acid and e in water (Scale bars: a = 1 mm, b = 20 μ m, c-e = 10 μ m). 

Contexts in source publication

Context 1

... stalked, gregarious, with an overall length of 1.2-2.5 mm; sporotheca cylindrical, brick red, measuring 1-1.5 mm tall and 0.9-1 mm wide; stalk slender, striate, brick red or darker, 0.5-1 mm long; peridium evanescent except for the calyculus (Fig. 15 a). Capillitium consisting of 2.5-4 µm in diameter, threads marked with half rings or cogs firmly attached to the whole inner surface of the calyculus (Fig. 15 b, c). Spores red to reddish brown in mass, colourless under light microscope, with a few scattered warts, 6-7 µm in diameter (Fig. 15 d, e). This species is mainly characterized ...

Context 2

... mm; sporotheca cylindrical, brick red, measuring 1-1.5 mm tall and 0.9-1 mm wide; stalk slender, striate, brick red or darker, 0.5-1 mm long; peridium evanescent except for the calyculus (Fig. 15 a). Capillitium consisting of 2.5-4 µm in diameter, threads marked with half rings or cogs firmly attached to the whole inner surface of the calyculus (Fig. 15 b, c). Spores red to reddish brown in mass, colourless under light microscope, with a few scattered warts, 6-7 µm in diameter (Fig. 15 d, e). This species is mainly characterized by red and large sporangia. The species is most likely to be confused with A. incarnata (Pers.) Pers., but is distinct by firmly attached capillitium, rather longer ...

Context 3

... mm long; peridium evanescent except for the calyculus (Fig. 15 a). Capillitium consisting of 2.5-4 µm in diameter, threads marked with half rings or cogs firmly attached to the whole inner surface of the calyculus (Fig. 15 b, c). Spores red to reddish brown in mass, colourless under light microscope, with a few scattered warts, 6-7 µm in diameter (Fig. 15 d, e). This species is mainly characterized by red and large sporangia. The species is most likely to be confused with A. incarnata (Pers.) Pers., but is distinct by firmly attached capillitium, rather longer stalks, narrower, brick-red sporotheca which turn dark brown or brick-red gradually. In contrast, A. incarnata possess loosely ...