M-uscit Exorrct.—AMZenviesiani. 
NECKERA ABIETINA, 
Neckera, caule erecto pinnato, foliis uridique imbricatis 
appressis striatis subintegerrimis acuminatis, caulinis’ 
ovato-deltoideis, rameis ovatis, seta exserta, capsula 
ovato-cylindracea, operculo subulato.. (Tas. VII.) 
Has. In plaga occidentali Americe Borealis. D. Menzies, 1792. 
Caules plures ex eadem radice, spithamei et ultra, erecti,; vel 
curvati, flexuosi, rigidi, inferne indivisi, subaphylli, superne- 
pinnatim ramosi, ramis vix uncialibus, simplicibus, attenuatis. 
Folia ameene viridia, undique imbricata, erecto-appresssa, 
integerrima, vel, sub lente multum augente solummodo, serru- 
lata, striata, nervo satis valido ad apicem attingente percursa, 
margine paululum recurvo; caulina ovato-deltoidea, acumi- 
_ hata, ramea ovata, subacuminata. Perichetialia omnino in- 
tegerrima, enervia, exferiora ovato-rotundata, brevi-acumi- 
nata, valde concava, interiora longiora, pedicellum vaginantia. 
Seta brevis, foliis perichztialibus sub-duplo longior, erecta vel- 
curvata. Capsula ovato-cylindracea, erecta, flavo-fusea. Oper- 
culum subulatum. Peristomii dentes ext. 16, rubri, trans- 
versim striati; int. 16, filiformes, flavi, hic illic per trabes 
uniti, atque basi membrana reticulata connexi.. 
=e See 
This plant is a Neckera of Hedwig. Should the calyptra, . 
which I have not had the opportunity of seeing, prove mitriform, 
it will be Dadtonia of the Musc, Brit.. It is a truly magnificent 
species, and very unlike any thing with which I am acquainted. . 
Fig. 1, plants mat. size. Fig. 2, cauline leaf. Fig. 3, ramal 
leaf. Fig. 4, point of a leaf. Fig. 5, perichetium and capsule, 
Fig. 6, outer perichetial leaf, Fig.7, inner ditto. Fig. 8, por- 
tion of the-peristome. 
