Bush'S Fissidens Moss

(Fissidens bushii)



Plants to 13 - 2-2.5 mm. Stem branched; axillary hyaline nodules weak; central strand weak. Leaves as many as 20 pairs, oblong to lanceolate, obtuse-apiculate to acute-apiculate, to 2 - 0.5 mm; dorsal lamina rounded proximally, ending at insertion, not decurrent; vaginant laminae - 2/3 leaf length, - equal, minor lamina ending on or near margin; margin crenulate-serrulate, more strongly serrulate on vaginant laminae; costa ending 1-2 cells before apex or ending in apiculus, taxifolius-type; laminal cells irregularly 2-stratose in dorsal and ventral laminae, smooth, bulging, firm-walled, rounded-hexagonal, 7-9 -m, papillose in cell corners with 2-4 - inconspicuous papillae in vaginant laminae. Sexual condition dioicous; perigonia and perichaetia gemmiform, axillary, confined to proximal parts of stems. Sporophytes 1 per perichaetium. Seta to 10 mm. Capsule theca to 1 mm, erect, - arcuate, bilaterally symmetric, about 1 mm; peristome taxifolius-type; operculum 1 mm. Calyptra cucullate, smooth, 0.6 mm. Spores 14-18 -m.

Taxonomic tree:

Kingdom: Plantae
Phylum: Bryophyta
Class: Bryopsida
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