Musc1 Exorici1.—AHumboldtiani. 
PTEROGONIUM PULCHELLUM. 
Pterogonium, caule repente ramoso, foliis undique laxis 
lanceolato-acuminatis subintegerrimis enervibus, cap- 
sula ovato-elliptica, operculo rostrato. (Tas. IV.) 
Has. In umbrosis montis Quindiu, locis altioribus, altitudine 1070 
hexapodarum prope el Moral, regnum Novum-Granatense. 
Humboldt et Bonpland. 
Plant@ \axe cespitose (f. 1). Caules 3-4-lineares, repentes, 
ramosi, hic illic radiculosi (f. 2). Folia (f. 3) undique laxe 
imbricata, patentia, lanceolato-acuminata, obscure serrata, 
omnino enervia, lutescentia, nitida. Perichelialia (f. 4) 
minora, minus acuminata, paululum recurvata, omnino inte- 
gerrima. Seta lateralis, bilinearis, erecta, paululum curvata. 
Capsula (f. 5) ovata seu elliptica, rufo-fusca, erecta. Oper- 
culum suboblique rostratum. Peristomium (f. 6) 16-denta- 
tum, dentibus acutis, luteis. 
A ene 
Among those species of Pterogonium having their nerveless 
leaves imbricated on all sides of the stem, Pt. intricatum and 
repens have many characters in common with the one here 
figured and described. But besides that this is very much smaller 
in all its parts (the most minute that I am acquainted with in 
this genus), its leaves are more patent, and of a singularly bright 
and shining yellow green. 
Fig. 1. Plant nat. size. The rest are more or less magni- 
fied. 
