Musci Exorici.—Aumboldtiani. 
NECKERA LONGIROSTRIS. 
Neckera, caule erecto bipinnato, ramis attenuatis, fo- 
liis planis distichis ovatis acutis serratis, nervo prope 
medium evanescente, operculo longirostro, recto. 
(Tas. I.) 
Hap. regione temperata, in jugis Andium. Humboldt et Bon- 
pland. ; 
Radix repens; hic illic dense tomentosa. Cawlis bi- tri-uncialis, 
erectus, inferne simplex, superne pinnatim divisus, pinnis ite- 
rum spe pinnatis, attenuatis. Folia (f. 2) flavo-viridia, 
bifaria, disticha, patentia, verticalia, ovata, acuta, apicem ver- 
sus serrata, nervo satis distincto prope medium evanescente 
instructa, terminalia magis angusta atque acuminata (/f. 3). 
Perichetialia (f. 4) subulato-lanceolata, integerrima, sub- 
enervia, basi imbricata, apicibus squarroso-patentibus. Sete 
quandoque solitarie, sepe tres ad sex ex eodem caule, versus 
ejus medium inserte, subbiunciales, erecta, flexuose. Capsula 
ovata, erecta. Operculum (f. 5) rostratum, rostro recto, cap- 
sula subeque longo. Peristomii dentes ext. erecti, longius- 
culi, striati, rubri: im¢. angusti, fere filiformes, perforati, flavi, 
e membrana reticulata, brevi orti. 
Among the Neckere none of the hitherto described species 
will accord with that here figured, nor will any of those belonging 
to Leskea, a genus to which it has an almost equal claim. 
The plant of all others to which it approaches the nearest in 
general habit, is doubtlessly Climacium dendroides (Hypnum 
nobis); and even in its peristome it is not far removed, for the 
teeth of the inner fringe are perforated, but not so remarkably 
as in that plant; and the columella, it may be observed, is not at 
all exserted. 
Fig. 1, 1. Plants nat. size. The rest of the figures are more 
or less magnified. 
