406 ADELANTHUS. 
pachydermes, omnes sublevissime. Foliola caulina nulla v. rudi- 
mentaria. 
Flores dioici: 2 ramulo brevissimo postico e caulis basi—raro e medio 
caule inter folia—oriundo constantes. Bractee sub 9, trijuge, tris- 
tichze, extime minim squameformes, intimee foliis paulo breviores, 
subrotunde, apice plus minus profunde bifide lacintis patulis, liberee 
vel basi subconnate, subintegerrime. Ramulus 2 apice pro pedi- 
celli receptione profunde excavatus, cavitate pyriformi. 
Perianthia foliis caulinis dimidio longiora, ex involucro alte emersa, 
anguste obovato-pyriformia turgida, superne obtuse 3-(raro 4-5-) 
gona, ore primum conniventi-clausa demum subtrifida, subdenticu- 
lata ciliolatave. Calyptra perianthio paulo minor, pyriformis, sub- 
stantia firma cellularum stratis 3 conflata apice demum irregulariter 
trifida, inferne pistillidiis sterilibus sparse obsita. In unica calyptra 
numeravi 12 pistillidia abortiva, eidem prope basin prcipue adnata, 
quorum tamen duo ad dimidiam, unum ad #4 calyptre altitudinem 
posita fuerunt. Capsulas, in meis exemplaribus jam decisas, nondum 
vidi. 
Amenta @ ramulos tenues albidos julaceos circinatos sistentia, caulis 
facie postica per totam longitudinem, sed preecipue basin versus, hic 
illic insidentia. Bracteze 12-jugze, v. pauciores, arcte imbricate, 
forma singulari subeymbiformes, vel potius cucullum reversum 
fingentes, valde concave et subsaccatee vix tamen complicate, parum 
ine quilatere, apice rotundato sxepius integre raro bidentule, pellu- 
cidissime areolate, antheridium solitarium magnum brevi-pedicella- 
tum foventes. Bracteolee ubique obvi bractearum dimidio numero, 
iisdem 2-4-plo breviores, subrotundze oblongeve, integerrime v. 
angulate, haud raro folio proximo superiore basi connate. 
Flagella, saltem in dimidio inferiore, folia rndimentaria minutissima 
tristicha distantia subquadrato-rotunda pellucida gerunt ; e cujusque 
folii basi externa profertur fasciculus parvus radicellarum tenuium 
fragilium ; folia versus flagelli apicem obsoleta nullave, radicellz 
copiosiores, evadunt. 
Caules validi: cellule 10-12 in diametro, corticales 30-36-seriate luridz 
opace ; interne vix angustiores subpellucide, in caule vetusto ssepe 
deficientes, cortice solo persistente ! 
Adelanthus decipens, Hook. (typicus), meipso ad Kenmare Sound Hibernie, 
lectus, humilior est quam Andinus. olia minora, seepius distiche 
patula, aliarum stirpium tamen decurvo-secunda ; alia ambitu sub- 
rhombea, acuta vel etiam acuminata apiculataque ; alia spinoso-bi- 
tri-lobulata ; omnia valde distincte marginata. Cellule subbasales 
ceteris paulo majores (neque tamen elongate—tales ac in ceteris 
Adelanthis vidende, unde folia vittata fiunt)—In stirpe Andina, 
nunquam folia vidi nec acuminata nec profunde incisa lobulatave.— 
In Cubensi, ill. Gottsche delineata (in Rabenh. Hep. Eur., n. 474), 
perianthia matura spatheformia, hine pro capsule emissione 
hiantia. 
3. ADELANTHUS DECURVUS, Mitt. Mst. 
Spruce in Journ. Bot. 1876. 
Hab. in montibus Guayrapurina et Campana Andium Peruvianorum, 
alt. 800-1000 in., ad arbores vetustas, legit R.S. pl. ¢,a. 1855; insula 
Antillarum Dominica legit Guinprine, pl. ¢ et 2 (hb. Wilson et 
Carrington). 
