NOTEROCLADA. 531 
usque subeequaliter 4-valvis. Elateres in fundo diu persistentes lon- 
gissimi dispiri. Sporze magne leves. 
Antheridia in caulis (pl. ? v. distinctee) facie superiore sparsa, seepe per 
paria foliorum basi approximata, in loculis prominulis conicis, pri- 
mum clausis, demum ruptis, solitaria, magna albida subsessilia. 
Pistillidia tenuia rigidula purpurascentia, in receptaculo Q sub 20, 
quorum unum fertile cito in calyptram transmutatur ; cetera sterilia ex 
parte calyptre basin circumstant, alia autem cum calyptra maturante 
tolluntur et in ejus superficie persistunt. Adveniunt etiam extra florem, 
super costam—interdum in tota sua longitudine—pistillidia sterilia nuda 
permulta, internis omnino conformia nisi parum minora; florem versus 
seepe cum antheridiis consociata, his autem costee marginibus magis 
approximata, 
Capsula bistrata est, strato externo crasso, e cellulis subquadratis, 
columnis angularibus fulcitis ; interno longe tenuiore e cellulis elongatis 
irregularibus, fibra spirali laxa interrupta repletis. Elateres bispiri, vel 
ad dimidium usque 3-spiri, alii plures in capsulee fundo alte convexo 
longius persistentes, ceteris autem homomorphi. Pedicellus cellulis 
pluristratis alternis conformibus conflatus. 
Obs. I cannot venture to combine this plant with Taylor’s Noteroclada 
confluens, of which I have an original specimen, gathered by Sir J. Hooker 
at Cape Horn. Besides minor differences, the leaves of N. confluens differ 
in being scarcely at all imbricated, broader than long, in about the same 
proportion (4 to 3) as those of my plant are longer than broad ; but they 
are thickened towards the middle base in the same way, and the stem is 
villous beneath with long white radicles, asin N. leucorhiza. Taylor calls 
the elaters of his plant “ brevissimi,” whereas in mine they are, as I have 
described them, “ longissimi.” 
At Marabitanas, the frontier town of North Brazil, I gathered on wet 
banks by the Rio Negro, along with Jung. heteracria n. sp., a Noteroclada, 
which I refer doubtfully to N. porhyrorhiza, guided mainly by its stout 
red radicles ; but the specimens are in such battered condition that I do 
not venture to describe them. 
XXXVI. SCALIA, Gray, Nat. Arr. Br. pl. (1821). 
Mniopsis Dum. Comm. Bot. (1823). Gymnomitrium Corda in 
Opiz. Beitr. (1829); Haplomitrium Nees. Hep. Eur. (1833). 
Caules validi suberecti, e rhizomate flexuoso ramoso, aliis ramis 
flagellaribus (arhizis tamen) orti, subsimplices, ramis foliosis paucis 
(ubi adsint) lateralibus. ¥olia magna subtransversa tristicha, per 
tria subverticillata, verticillis subdissitis ; f. lateralia late oblonga 
obovatave integra, repanda vel apice rude paucidentata; f. postica 
angustiora; cellule magne subzequilatero-hexagonz leptodermes. 
Flores dioici: @? terminales, polygyni. Bractew (vix propriz) a 
receptaculo sxpe remotiuscule, foliis paulo latiores, plerumque 
inciso-dentate. Perianthium nullum. Culyptra magna, subcylin- 
drica, multoties longior quam lata, leptodermis vel inferne carno- 
sula, basi et paulo altius pistillidiis sterilibus obsita, demum apice, 
