Monographs Details:
Authority:
Buck, William R. 2003. Guide to the plants of central french Guiana. Part 3. Mosses. Mem. New York Bot. Gard. 76: 1-167.
Buck, William R. 2003. Guide to the plants of central french Guiana. Part 3. Mosses. Mem. New York Bot. Gard. 76: 1-167.
Family:
Pterobryaceae
Pterobryaceae
Description:
Species Description - Plants medium-sized, to ca. 7 cm tall, in green to golden, thin to dense, epiphytic colonies; stipes frondose, irregularly pinnately branched, erect, sometimes with flagellate branches. Stipe leaves erect-appressed, oblong-ovate, ± abruptly short-acuminate, slightly rounded to the insertion, ca. 2.1 x 0.8-1 mm. Branch leaves erect- spreading to spreading, usually in obvious spiral rows, little altered when dry, broadly lanceolate, gradually acuminate, strongly concave, not plicate, rounded to the insertion to subauriculate, 1-1.5(2.2) x 0.5-0.8 mm; margins finely serrulate throughout, plane; costa single, subpercurrent; cells short-linear, 15-35 x 4-6 µm, often prorulose at upper ends, thin- to firm-walled, not or scarcely porose, becoming broader, thicker-walled, and porose toward the insertion; alar cells few, subquadrate, confined to the base of the auricle, never extending up the margin by more than ca. 4 cells. Asexual propagula of 3-12- celled gemmae clustered in leaf axils, and of microphyllous flagellate branches, mostly simple or little-branched. Setae ca. 10 mm long; capsules exserted, ca. 2.5 mm long; exostome teeth smooth, often perforate at base; endostome rudimentary. Calyptrae reportedly cucullate, pilose.
Species Description - Plants medium-sized, to ca. 7 cm tall, in green to golden, thin to dense, epiphytic colonies; stipes frondose, irregularly pinnately branched, erect, sometimes with flagellate branches. Stipe leaves erect-appressed, oblong-ovate, ± abruptly short-acuminate, slightly rounded to the insertion, ca. 2.1 x 0.8-1 mm. Branch leaves erect- spreading to spreading, usually in obvious spiral rows, little altered when dry, broadly lanceolate, gradually acuminate, strongly concave, not plicate, rounded to the insertion to subauriculate, 1-1.5(2.2) x 0.5-0.8 mm; margins finely serrulate throughout, plane; costa single, subpercurrent; cells short-linear, 15-35 x 4-6 µm, often prorulose at upper ends, thin- to firm-walled, not or scarcely porose, becoming broader, thicker-walled, and porose toward the insertion; alar cells few, subquadrate, confined to the base of the auricle, never extending up the margin by more than ca. 4 cells. Asexual propagula of 3-12- celled gemmae clustered in leaf axils, and of microphyllous flagellate branches, mostly simple or little-branched. Setae ca. 10 mm long; capsules exserted, ca. 2.5 mm long; exostome teeth smooth, often perforate at base; endostome rudimentary. Calyptrae reportedly cucullate, pilose.
Distribution:
French Guiana South America|
French Guiana South America|