Home Central American Mosses
Home
Name Search
Family List
Generic List
Species List
!Streptopogon cavifolius Mitt. Search in The Plant ListSearch in NYBG Virtual HerbariumSearch in Muséum national d'Histoire naturelleSearch in Type Specimen Register of the U.S. National HerbariumSearch in Virtual Herbaria AustriaSearch in JSTOR Plant ScienceSearch in SEINetSearch in African Plants Database at Geneva Botanical GardenAfrican Plants, Senckenberg Photo GallerySearch in Flora do Brasil 2020Search in Reflora - Virtual HerbariumSearch in Living Collections Decrease font Increase font Restore font
 

Published In: Journal of the Linnean Society, Botany 12: 180. 1869. (J. Linn. Soc., Bot.) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 2/16/2011)
Acceptance : Accepted
Project data     (Last Modified On 2/16/2011)
Discussion:

Streptopogon cavifolius has oblong, cucullate leaves with the apical surface usually covered with multicellular gemmae. When the gemmae detach they leave broad, truncate projections from the gemmae-producing cells. Streptopogon cavifolius often occurs mixed with S. calypmeres and both species have similarly shaped leaves with entire, unbordered margins, hexagonal to rhomboidal cells, and gemmae clustered at the apex. Streptopogon calymperes differs from S. cavifolius in having leaf apices elongated into long, stout apical proboscides, and costae with a ventral layer of enlarged epidermal cells above the median guide cells.

Illustrations: Salmon (1903, Pl. 9 62–71); Bartram (1949, Fig. 60 H–J); Zander (1993, Pl. 41, 17–19); Sharp et al. (1994, Fig. 262); Churchill and Linares (1995, Fig. 160 k–n); Matteri and Schiavone (1998, Figs. 1 9–15). Figure 72.
Habitat: On tree bark (Sambucus): 1260–1981 m.
Distribution in Central America: GUATEMALA. Alta Verapaz: Standley 69556c (F, FH); Quiché: Sharp 5308a (FH, TENN).
World Range: Mexico; Central America; Caribbean, Western, Northern, and Southern South America.

 

Export To PDF Export To Word

Streptopogon cavifolius Mitt., J. Linn. Soc., Bot. 12: 180. 1869.

Protologue: Ecuador. Andes Quitenses, Baños ad pedem montis Tunguragua, in ramulis praecipue malvacearum suffruticosarum, etiam in monte Guayrapata (6000–10,000 ped.), Spruce n. 140 (G, NY). 

Plants small, scattered or gregarious, brownish to reddish green, corticolous. Stems 5–10 mm high, irregularly branched, central strand absent, cortical cells thin-walled, hyaline, uniform throughout; rhizoids densely clustered at base of stem. Leaves 2–2.5 mm long, oblong to narrowly spathulate, sheathing at base, concave, evenly spaced, appressed, contorted when dry, erect-spreading when wet; apices obtusely rounded, cucullate; margins entire, incurved above; costa narrow, subpercurrent to percurrent, ventral surface cells rectangular, smooth on both surfaces, guide cells and single (dorsal) stereid band well-developed, enlarged ventral epidermal cells absent, guide cells ventrally exposed; upper cells hexagonal to rhomboidal, 24–48 x 10–20 μm, thin-walled, somewhat bulging, smooth on both sides, longer near the costa, shorter near the margin, basal cells rectangular, thin-walled, smooth, 34–80 x 8–20 μm, those near the margin shorter and firmer walled, alar cells not differentiated. Asexually reproducing by clavate or cylindrical, multicellular, smooth gemmae borne singly on apical leaf surface. Dioicous. Sporophytes rare, not known from Central America, description based on South American plants. Setae 2 mm long, yellow. Capsules cylindrical, erect, 3.3 mm long, smooth, yellowish brown; opercula rostrate; peristome teeth filamentous. Spores not seen. Calyptrae mitrate.

 

 

 
 
© 2024 Missouri Botanical Garden - 4344 Shaw Boulevard - Saint Louis, Missouri 63110