Musci ExorTic:3.—WMenziesiani. 
PHASCUM NERVOSUM. 
Phascum caule subsimplice breviusculo, foliis inferiori- 
bus ovatis subacuminatis, superioribus elliptico-lan- 
ceolatis longe acuminatis crassinervibus, seta subnulla, 
capsula immersa ovato-globosa acuminulata. (Tas. 
CV.) 
Has. E promontorio Capitis Bone Spei. D. Menzies, 1791. 
Caules cespitosi, bi-trilineares, erecti, simplices vel ad basin di- 
chotomi. Folia lutescente-viridia, erecta, inferiora ovata, 
parum concaya, nervo latissimo in acumen breve desinente, 
ae . a ey ee ree f - 
{ a ;; v 
concava, nervo latissimo, ut in Dicrano flexuoso et ejus affini- 
, elliptico-lanceolata, 
tatibus, fuscescente, in acumen longum angustum integerri- 
mum extendente percursa. Foliorum subs/antia compacta. 
Seta vix ulla. Capsula foliis perichetialibus omnino obtecta, 
ovata, rufo-fusca, apice acuminulata. 
Although at the first aspect this Phascum has much similarity 
to Ph. subulatum, yet when the leaves are more accurately ex- 
amined, they will be found not only to differ in shape, but re- 
| markably also in the structure of the nerve, which in this plant 
is very broad. In this particular it approaches to the Ph. cras- 
sinervium of Schwaegrichen, from which it again differs in the 
leaves of the latter being as strongly reticulated as those of Ph. 
serratum. 
Fig. 1, tufts of plants, nat. size. Fig. 2, sterile plant ; and 
Fig. 3, fertile ditto. Fig. 4, inferior leaf. Fig. 5, superior ditto, 
Fig. 6, capsule.—magn. 
Vo. Il. 
aes 
