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PHASCUM NERVOSUM,
Phascum caule subsimplice brevi usculo, foliis inferiori-
bus ovatis subacuininatis, superioribus elliptico-lan-
ceolatis longe acuminatis crassinervibus, seta subnulla,
capsula immersa ovato-globosa acuminulata. (Tab,
CV.)
HiB. E promontorio Capitis Bonæ Spei. D . Menzies, 1791,
Caules cæspitosi, bi-trilineares, erecti, simplices vel ad basin di-
chotomi. Folia lutescente-viridia, erecta, inferiora ovata,
parum concava, nervo latissimo in acumen breve desinente,
superiora senperichoelialia sensim majora, elliptico-lanceolata,
concava, nervo latissimo, ut in Dicrano flexuoso et ejus affini-
tatibiis, fuscescente, in acumen longum angustum integerri-
mum extendente percursa. Folioriim substantia compacta.
Seta vix ulla. Capsula foliis perichætialibus omnino obtecta,
ovata, rufo-fusca, apice acuminulata.
Although at the first aspect this Phascum has much similarity
to Ph. sululatum, yet when the leaves are more accurately examined,
they will be found not only to differ in shape, but remarkably
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 p la n t; and
Fig. 3, fertile ditto. Fig. 4, inferior leaf. Fig. 5, superior ditto.
Fig. 6, capsule.—magn.
Vol. II.
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