280 NEW CRYPTOGAMIC PLANTS 
Stems scarcely a quarter of an inch high. Shoots brownish- 
red below, pale green above, from a narrow naked base en- 
larging into a broad flattish top closely set with leaves. Male 
flowers on the summits of short branches on the same shoot as the 
female. Anthers jointed. No paraphyses observed. Calyptra 
dimidiate, not swelled at the base as in Physcomitrion. Gymaos- 
tomum Bonplandii, Hook., found on the tops of the same Andes, 
differs by the smaller size, wider leaves, straighter and shorter seíz, 
and by its more distinctly apophysate capsules. 
Dipymopvon, Hedw. 
1. D. crinalis, Tayl. Caule elongato, flexuoso, laxe cæspitoso; 
ramis erectis; foliis laxe imbricatis, erecto-patentibus, ex ob- 
longa vaginante basi elongate setaceis, summo apice dentatis, 
nervo percurrente; capsula parum inclinata, subæquali, cylin- 
draceo-ovata; operculo elongate conico. 
On Pichincha. Prof. W. Jameson. 8th Aug., 1847. 
Tufts three inches high, pale green. Leaves slightly secund. 
An annulus is present. Peristome of sixteen filiform teeth united 
in pairs at their bases. Closely allied to Cynontodium flewicaule, 
Schwaeg., differing by the elongated and oblong sheathing bases 
of the leaves, by their longer setaceous summits being distinctly 
dentate, by the more bushy tops of the shoots, and by the sheath- 
ing part of the perichætial leaves being oblong and angulate at 
the top. 
2. Didymodon (?) Pichinchensis, Tayl. Caule laxe caspitoso, 
erecto, apice prolifero; surculis simplicibus apice incrassatis ; 
foliis arcte imbricatis, squarroso-recurvis, ovatis, acutis, flexuosis, 
margine tumenti-recurvis nervoque pellucido excurrente serru- 
latis, immarginatis; perichztiis minoribus; capsula erecta, mM- 
eequali, operculo tenuiter longirostro. 
On Pichincha; near the limits of perpetual snow. Prof: W. 
Jameson. 5th July, 1847. 
Tufts about an inch and a half high, rusty brown beneath, pale 
green above. Perichætium terminal; from its base usually one, 
sometimes two, simple annual shoots arise. Leaves with minute, 
