PTEROPSIELLA. | CEPHALOZIA. 391 
majores liberze pallid pellucide elongato-areolate ovate, ultra 
medium bifid, laciniis tenuiacuminatis denticulatis spinulosisve ; 
bracteole bracteis conformes, dimidio minores vel fere eequimagne. 
Perianthia bracteas triplo superantia, incurva elongata lineari-subulata 
triquetro-prismatica, ore constricto 6-fida, laciniis capillaceo-acumi- 
natis subspinulosis. Calyptra perianthio 4-plo brevior ovalis tenuis. 
Capsula oblongo-cylindracea, ad basin usque 4-valvis, bistrata ; 
cellule exteriores tesselatee, columnis parietalibus hic illic fulcite, 
interiores fibris semiannularibus dissitis notatee. Elateres brevius- 
culi subobtusi dispiri, nonnulli basales ceteris breviores obtusati. 
Sporze globose, elateribus eequilatee, minute tuberculosee. 
Amenta ¢ postica—raro in frondis ipsius apice terminales—olivaceo- 
viridia, julacea; bracteze 10-20-juge, conferte assurgenti-secunde 
rectangulari-cuneatze breviter bifidee, segmentis frequenter in cornua 
brevia porrectis, concave monandre. Bracteolee pro more (nec 
semper) adjectse sunt: parvee, quadrate bidentate, dentibus cellula 
1-2 constantibus.—Plantz monoice raro adveniunt. 
This species is fond of growing on the decaying bark of old or prostrate 
trees. Luxuriant specimens were gathered on fallen pods of Parivoa 
excelsa. I found it once intermixed with male plants of C. integrifolia, 
from which its olive-green catkins at once distinguished it; C. integrifolia 
having them white, besides a distinctly leafy stem. 
The radicles originate in tubercles (of one or two cells) placed here and 
there on the underside of the costa; but even the tubercles are not 
developed unless radicles be needed for attaching the frond at that point. 
In the male spikes a few more cells are sometimes added on to these 
tubercles, which thus become underleaves, or bracteoles. The fronds, 
whether primary or secondary, often root also at the attenuated point. 
Subgenus III. ZOOPSIS, Hook, fil. (genus). 
Crypt. bot. Antarct. Voy. p. 55 (1846); Lindberg, Journ. Linn. Soc. 
(May 1872). R.S. in tract. cit. (1882). 
Plante minut prostrate cladocarpice, caule angusto frondiformi ad 
speciem (haud revera) aphyllo, laxe corticato, subradicelloso, paucirameo. 
Folia preminuta, sublongitudinaliter inserta 1-2-loba, lobis basi cellula 
singula (raro bina) magna constantibus, apice vel muticis vel cellula 
tenui unguiformi apiculatis. Foliola subnulla. Bractew foliis longe 
majores tristiche bipartite, laciniis subulatis. Perianthia pro plantula 
maxima, distincte trigona vel fere teretia, apice constricto profunde 
laciniato. Capsula etc. omnino Cephalozic. 
3. CEPHALOZIA MONODACTYLA, Spruce. 
In sylvis ad fluvii Negro cataractas, in terra nuda, preecipue ad cumulos 
a vermibus magnis suffossos; necnon in Lepidozia chetophylla 
parasitans. 
Rami 1-1°5™™ longi. Folia yg™™ longa. Caulis 75™™ latus. Cellule 
corticales, necnon foliares inferiores Jo, superiores 25™™. Bracteze 
int. 3-4; perianthia 1:0 x -2™™, 
Minutissima virescens, strato tenui effusa. Caules 5-10™™ longi fili- 
formes flexuosi, parum et substellatim ramosi, trigono-prismatici 
(supra plani, subtus carinati), cellularum seriebus 5 conflati ; cellule 
corticales vacue pellucidee, antice biseriate magne spheric (pres- 
