Musci Exorici.—AHumboldtiani. 
HOOKERIA FALCATA. 
Hookeria caule procumbente, ramis erectis, foliis fal- 
eato-secundis, lanceolato-longe acuminatis, serratis, 
binervibus, capsula ovata horizontali, operculo subu- 
lato, calyptra basi 6- vel 8-fida. (Tas. LIV.) 
Has. In convallibus Andium Granatensium inter Almaguer et 
Pasto, altitudine 1200—1500 hexapod. Humboldt et Bon- 
pland. i 
Caulis procumbens, ramis brevibus, erectis, spe simplicibus. 
Folia undique inserta, sed insigniter falcato-secunda, lanceo- 
iata, longe acuminata, serrata, binervia, nervis ante apicem 
evanescentibus. Perichetialia subenervia, ovata, tenuiter 
acuminata, serrulata. Sefa sesquiunciam longa, flexuosa. 
Capsula ovata, horizontalis. Operculum subulatum. Caly- 
pira mitriformis, glabra, ad apicem solummodo scabriuscula, 
basi sub-8-fida. Peristomium ut in Hypno ; dent. ext. linea 
media pellucida, 
nme 
At first sight this plant has much affinity with H. uncinalum ; 
but it is a true Hookeria, having a calyptra like that of Hookeria 
pallescens (vide Tas. XXXVIII.), except that the divisions of it 
are shorter. ‘The leaves will readily distinguish this species both 
from the one just mentioned, and from every other individual at 
present known of the genus. 
Fig. 1, plant nat. size. Fig. 2, leaf. Fig. 3, perichatial leaf. 
Fig. 4, capsule. Fig. 5, calyptra, Fig. 6, outer peristome. Fig. 7; 
inner ditto,—magn. 
