502 TYLIMANTHUS. 
Plante elate, habitu exacte fere Plagiochile. Caules e caudice 
valido microphyllo, ramoso et flagellifero, assurgentes erective, sub- 
ramosi, tortelli, apice decurvi. Folia alterna succuba convexo- 
decurva, raro subexplanata, oblique oblonga, subdimidiata; apice 
raro rotundata, plerumque emarginato-truncata vel breviter biloba, 
margine apicali et postico plus minus denticulata serrulatave, antico 
ad Plagiochile instar recurvo et decurrente integerrima, reti majus- 
culo. Foliola nulla. Flores dioici, terminales. Bractece 9 subbi- 
juge, foliis multo latiores, apice fortius serrate vel plurilobe. 
Marsupium (perianthii vicibus fungens) pendulum, in muscis sub- 
stratis nidulans, carnosum (ore nudum, annulo coroniformi nullo 2). 
Culyptra ad apicem fere usque cum marsupio concreta, apice pistil- 
lidia sterilia gerens. Cupsula in peduncula prelongo exserta, cylin- 
drica, 4-valvis. lateres ete. mihi nondum visa. Andrccia spicata, 
antheridia 2-4na (‘‘complura,” Tayl.) 
Hab. et Distr. Pauce species adhuc descripte in rupibus humidis 
montium Americe tropice et australis, necnon in insulis Oceanicis: 
Tasmania, etc. vigent. Species solitaria meipso in Andibus lecta 
etiam in insulis Antillis inventa fuit. 
1, TYLIMANTHUS LAXUS (Lindenb.), Spruce. 
Gymnanthe lava G. in Husnot, Hep. des Antilles. Plagiochila laxa 
Lindenb. Sp. Hep. p. 68, t. 18. 
Hab. Andes Quitenses, in stilicidiis subalpinis montium Pichincha et 
Tunguragua, etiam in sylva Canelos. In insula Guadaloupe legerunt 
cl. Husnor me 
F 20x13, eds; br 9 20x2:3™™, 
Cwespitosa, fulvo-virescens. Caules 1-2-pollicares, e caudice prostrato 
vage diviso microphyllo radicelloso et flagellifero oriundi, assurgentes 
subr: amosi, sepe tortuosi, apice decurvi, Ysubtus hic illic radicellosi ; ; 
rami foliosi subpostico-laterales, basi vix sub folii angulo postico 
latentes ; flagella autem revera postica. 
Folia alterna succuba, plant efloriferze et mascule subimbricata, 
fceminee confertissima, valde convexo-decurva raro planiuseula, late 
dimidiato-oblonga vel oblique ovato-oblonga, apice rotundato trun- 
catove, bidenté ita bilobave (varius trilobulata), ad sinum parce denti- 
culata serrulatave, margine antico ad Plagiochile instar recurvo 
longius decurrentia integerrima, postico brevissime arcuato-decur- 
rentia integerrima vel eroso-repandula ; cellulase majusculee, omnes 
equilatero-hexagone ad angulos incrassatee, granulis endochromii 
paucis magnis in annulum coacervatis subopacie, basales magis pellu- 
cide sed non elongatee. Nonnunquam e folii margine proferuntur 
radicelle crebree capillares implexee.—Foliola nulla. 
Flores dioici: 9 terminales, innovatione nulla. Bractew subbijugee, 
foliis aequilongee, multo latiores, oblato-orbiculatee, margine imaequa- 
liter sub 5-lobe, lobulis acutis tortellis, sinubus depressis. Torus 
