ODONTOSCHISMA. | CEPHALOZIA. 401 
boreales, Rio Negro, Trombetas, &c., necnon per totam regionem 
graniticam fluminum Orinoco, Casiquiari, Uaupes, &c., ad arborum 
pedem radicesque exsertas, raro ad truncos putrescentes, seepe aliis 
hepaticis muscisque consociata easdemve infestans. 
egoueeGs, “Ox "7 3 6 ge 3 Or. mnt. “8x 35, 11 x"bs per 23x "7, 2:5 x5, 
2°0x°4; cal 1:0x°5 ; caps. valv 8x ‘25-3; br g 4x -Q™™ 
Prostrata, in plagas latas tenues effusa, vel super muscos palustres reptans, 
viridis, albescens roseave. Caules pollicares longioresque, tota fere 
longitudine zquifoliati, basi ipsa radicellis sepeque flagellis radi- 
cantes, postea sursum arcuantes matriceque liberi, flagello demisso 
(raro 2 v. 3) iterum iterumque radicantes arcuantesque ; e facie postica 
ramos equifoliatos, seepe subdivisos, paucos—parvifolios gemmiparos 
nullos—emittentes ; caeterum plus minus radicelliferi, raro arhizi. 
Flagella sat valida alba flexuosa omnino aphylla, radicellis trichoideis 
sparse densiusve vestita. 
Folia arcte (ad 4) imbricata, plus minus patentia vel seepe assurgenti- 
secunda, basi subobliqua, longitudinali fere, inserta, antice perpaulo 
decurrentia, suboblique ovato-rotunda vel late ovato-oblonga, rotun- 
data raro truncato-retusula, e margine toto incurvulo subconcava, 
cellulis incrassatis marginata, integerrima ; cellulze mediocres rotundo- 
hexagonee v. subquadratee, ad angulos incrassatz, minutissime verru- 
culos, ex endochromio copioso opace, solum ipso centro pellucide, 
foliorum vetustorum evacuate. 
Foliola preminuta, ad squamulam ovatam integram bifidamve redacta, 
hic illic sed preecipue ramorum apicem versus obvia, seepe tamen 
obsoleta nullave. 
Flores dioici, postici. Ramuli ¢ breves tristichophylli; bractez subtri- 
juge, interiores sensim majores, arcte imbricate, apice recurvule 
cuneato-oblongz, fere ad medium acute bifide, laciniis subine- 
qualibus acutis integerrimis, oblongato-pellucido-areolate (aliorum 
florum tamen magis opacze); bracteola intima sepe basin versus 
dente lobulove aucta, czeterum bracteis conformis. 
Perianthia foliis caulinis triplo longiora, albida subroseave, anguste fusi- 
formia subulatave, seepe subfalcata, obtuse trigona triplicataque, ore 
denticulata vel subciliata, vel valvatim vel (rarissime) circumscissim 
rupta. Calyptra perianthio plus duplo brevior, pyriformis, vel latior 
et obovato-globosa, tenuissima, cellulis unistratis valde inzequilateri- 
3-7-gonis pellucidis areolata, apice demum rupta laceraque, basi 
pistillidiis sterilibus ad 20 obsita. 
Capsula calyptra paulo brevior, pedicello elongato suffulta, cylindrico- 
oblonga, ab ipsa basi 4-valvis valvulis inequilatis rufo-badiis validis. 
Amenta mascula e caulis facie postica, basin mediumve versus orta, 
tenuia, albida, pellucida, incurva circinnatave. Bractez 10-12-juge, 
arcte imbricate, apice tamen patule, subsecundz, ovato-oblonge- 
ligulateve, cymbiformi-concavee, ad j acute bifid, segmentis obtusis. 
Antheridia solitaria magna globosa brevipedicellata, demum a basi 
ad apicem usque hine hiantia. Bracteole ubique obvie, bracteis 
duplo breviores lineari-ligulats, apice bispinulosee.—Unicum ex- 
emplum inveni caulis primarii apice in spicam masculam robustam 
viridem commutati ! 
Var. Europea: perianthiis apice valvatim dehiscentibus, valvulis (sub 6) 
plus minus incisis ciliatisque. 
Var. Amazonica : perianthiis apice integerrimo v. parum fimbriato con- 
