a Supet 
be a fay 
is 
Musetr Exoric:.—Humboldtiani. 
bah 2 
HEDWIGIA SECUNDA. 
Hedwigia caule erecto ramoso, ramis subpinnatis, foliis 
secundis late ovatis acuminulatis marginatis striatis 
enervibus apice serrulatis, capsula ovato-cylindracea, 
operculo subulato. (Tas. XLVI.) 
Has. In regni Mexicani montosis apricis, juxta Toluccam, ad 
radices montis perpetua nive obtecti, regione frigida, altitu- 
dine 1640 hexapodarum. Humboldt et Bonpland. 
Caules 3-4-unciales, erecti, flexuosi, subvage ramosi, ramis pin- 
natis, pinnis non raro flagelliformibus, subdenudatis, radican- 
tibus. Folia undique inserta, sed uno latere spectantia et ita 
secunda, late ovata, acuminulata, concava, striata, omnino 
enervia, margine incrassata, apice serrulata, flavo-virescentia, 
basi aurantia. Perichetialia lanceolata, striata, sepe invo- 
luta. - Seda lateralis, sesquiuncialis, Capsula ovato-cylindra- 
cea, ore parvo demum post operculi casum latiore. Opercu- 
um subulatum, rostro inclinato. Calyptra dimidiata. 
In the Muscologia Britannica it is proposed that the genus 
Hedwigia should be confined to those mosses whose capsules 
have a naked mouth and lateral fruitstalks, Such is the case in 
the present instance ; and so it is with another Humboldtian 
moss, which differs from this in many particulars, and which I 
shall soon take occasion to publish in this work. In both there 
is a considerable resemblance in the leaves to those of Anictan- 
gium ciliatum and imberbe, 
Fig. 1, plant nat. size, Fig. 2, leaf. Fig. 3, perichetium. 
Fig. 4, leaf of ditto. Fig. 5, capsule with operculum, F ig. 6, . 
mature capsule, Fig, 7, calyptra.—magn, 
ey 
