Pseudocrossidium hornschuchianum (Schultz) R.H.Zander

Hornschuch's pseudocrossidium moss (en)

Species

Bryophytes > Pottiales > Pottiaceae > Pseudocrossidium

Characteristics

Plants small, caespitose, dark green to reddish brown; terricolous. Stems 2-6 mm tall, infrequently branched; in section with small central strand, inner cortical cells lax, outer cortical cells in 1-2 rows, stereids, dark red. Leaves spirally twisted around stem dry, erect-spreading wet, ovate-acuminate to triangular, 0.8-1.5 mm long; apex acuminate, apiculate to cuspidate; margins spirally revolute, frequently involving complete upper lamina. Costa short-excurrent, broad, ventral superficial cells quadrate to rounded, sparsely papillose, dorsal superficial cells short-rectangular, smooth; in section flattened to reniform, guide cells 4-6, ventral stereid band in 1-2 rows, cells infrequently substereids or only incrassate, ventral surface cells larger, incrassate, papillose, dorsal stereid band 4-5 cells thick, dorsal surface cells frequently substereids, smooth. Upper laminal cells rounded-quadrate, incrassate, sharply mammillose or rarely with 4-6 low, fine, C-shaped papillae over lumen; basal cells larger, quadrate to rectangular, smooth. Sporophyte not known in Africa. Middle Eastern and European specimens have: perichaetial leaves longer; seta short, orange; capsule narrowly elliptical, weakly curved, dark brown; operculum long-rostrate; spores 8-10 µm.
More
Stems to 0.5 cm. Stem leaves ovate-deltoid to short-lanceolate, 1-1.5 mm, distal margins once-to almost twice-revolute; apex narrowly acute below the awn; costa ending in the long mucro or short awn, adaxial surface of costa at mid leaf convex, with 2-3 guide cells; distal laminal cells 10-13 µm wide, 1:1. Specialized asexual reproduction absent. Perichaetial leaves strongly differentiated. Seta ca. 1 cm. Capsule ca. 1.7 mm, peristome of 32 linear, yellow teeth, twisted counterclockwise a half turn, operculum conic. Spores yellow, essentially smooth, 8-10 µm.
Life form -
Growth form -
Growth support -
Foliage retention deciduous
Sexuality -
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.0 - 0.01
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Pseudocrossidium hornschuchianum unspecified picture

Distribution

Pseudocrossidium hornschuchianum world distribution map, present in South Africa

Identifiers

LSID 35141022
WFO ID wfo-0001169757
COL ID 4NV83
BDTFX ID -
INPN ID 5268
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Barbula hornschuchiana Pseudocrossidium hornschuchianum Desmatodon adustus Tortula adusta Tortula revoluta var. hornschuchiana