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Andreaeaceae

Andreaeaceae
Media
not available
  • FNA
  • Resources
Richard H. Zander in Flora of North America (vol. 27)
Plants dark green to black, small to large, often in dense turf. Stems erect, irregularly branched, bearing rhizoids at base; central strand absent. Leaves erect or secund, sometimes falcate-secund, short- to long-lanceolate or panduriform; costa absent or single or branched, narrow to broad, percurrent or ending before the apex; in section of uniform cells, lamellae absent; margins plane to weakly incurved, seldom recurved; laminal cells short throughout or occasionally elongate in leaf base, 1-stratose or 2- to multistratose. Specialized asexual reproduction rare, as filamentous gemmae from laminal cells. Sexual condition usually autoicous, mainly cladautoicous but occasionally gonioautoicous or dioicous; perichaetial leaves commonly differentiated, larger, convolute-sheathing. Sporophytes terminal on an elongate gametophytic stalk, the pseudopodium. Seta essentially absent. Capsule erect, elliptic, opening by usually 4 lateral longitudinal valves; stomata, annulus, operculum and peristome absent. Calyptra tiny, campanulate-mitrate, often fugacious. Spores spheric, oval or tetrahedral, small to large, 10 to occasionally more than 100 µm, papillose.

The Andreaeaceae shares with Sphagnaceae the sporophyte raised on a pseudopodium, but the spore sac is derived from the endothecium, not the amphithecium as in the latter family. The spore sac arches over the massive, persistent columella. The longitudinal valves bulge open when the capsules are dry, closing when wet. Erect, thallose protonemal appendages are common and distinctive.

Species within inventory project: Arizona Flora
Andreaea acutifolia
Media resource of Andreaea acutifolia
Andreaea alpestris
Media
not available
Andreaea alpina
Media
not available
Andreaea angustata
Media
not available
Andreaea australis
Media resource of Andreaea australis
Andreaea baileyi
Media
not available
Andreaea blyttii
Media resource of Andreaea blyttii
Andreaea brevipes
Media
not available
Andreaea crassinervia
Media
not available
Andreaea depressinervis
Media resource of Andreaea depressinervis
Andreaea frigida
Media resource of Andreaea frigida
Andreaea fuegiana
Media
not available
Andreaea gainii
Media resource of Andreaea gainii
Andreaea hartmanii
Media
not available
Andreaea heinemannii
Media
not available
Andreaea huntii
Media
not available
Andreaea macounii
Media
not available
Andreaea megistospora
Media
not available
Andreaea mildbraedii
Media resource of Andreaea mildbraedii
Andreaea mutabilis
Media
not available
Andreaea nivalis
Media resource of Andreaea nivalis
Andreaea obovata
Media resource of Andreaea obovata
Andreaea papillosa
Media resource of Andreaea papillosa
Andreaea parvifolia
Media
not available
Andreaea petrophila
Media resource of Andreaea petrophila
Andreaea regularis
Media resource of Andreaea regularis
Andreaea rothi
Media
not available
Andreaea rothii
Media resource of Andreaea rothii
Andreaea rupestris
Media resource of Andreaea rupestris
Andreaea schofieldiana
Media
not available
Andreaea sinuosa
Media
not available
Andreaea sparsifolia
Media
not available
Andreaea wilsoni
Media
not available
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This project was made possible in part by the Institute of Museum and Library Services [MG-70-19-0057-19].

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