HYPOPTERYGIUM BRI. 
À. LoripivM Hx. et. Wins. 
1. Mypopterygium $íruthiopteris Dnm. Bryol Univ. Il pag. 716. C. MüttER Syn. musc. frond. 
II pag. 4 et Botan. Zeitg. 1854 pag. 597. H. Javanicum Dz. et M». in Herb. Hypnum Stru- 
ihiopteris Bum. Spec. Musc. II pag. 87. Scuwarcn. Suppl. L. 2. pag. 182. Pterygophyllum 
Struthiopteris Bu. Mant. Muse. pag. 151. — Dioicum; caules in rhizomate atro fusco- 
tomentoso erecti complanati ovato-vel elliptico-acuminati rigidi pinnati, pinnis pa- 
tulo-divergentibus app i i tiguisve superne flexuosis saepius inordinate 
ramulosis; folia lateralia basi erecto-appressa patula vel patulo-divergentia flexuoso- 
undulata e basi semiamplexicauli oblonga limbo tenui marginata supra medium minu- 
tissime denticulata, costa excurrente breviter euspidata, media duplo breviora cor- 
data acuminata appressa, acumine recurvo flexuoso, integra, e cellulis areolatis pa- 
chydermis longitudinaliter seriatis orbiculari-angulosis, in folii basi majusculis el- 
lipticis, contexta. 
Habitat insulam Jarae; in m. Gedé et Saluk, TxswANN; in m. Pangerango regione superiore altit. 7—10,000', pg VmtESE, 
MorrEnz (Herb. Mirrzx.) In litore occidentali Sumatrae , 'TEXSMANN. 
Plantae in rbizomate horizontali simplici, ope tomenti fusci densissimi substrato arctissime adhaerente, atro 
erectae distantes vel approxi frondif: pl ovato-vel ellipti i 0,05—0,07' longae, 
0,02—0,025' latae e flavescente olivaceae. Caulis basi nudus nigricans, sursum foliis sensim densioribus vesti- 
tus, apicem versus pallidior, angulosus strietus rigidus pinnatim ramosus, Rami patulo-divergentes, supremi 
patulo-erecti, alterni approximati vel contigui inferne recti, superne (in medio inprimis caule) flexuosi simplices 
vel ramulis sine ordine (raro pinnatim) dispositis aucti, Folia ordine !/, vel 2/; disposita, infima squamaefor- 
mia remota minuta inordinata, apicalia sensim magis dense imbrieata, lateralia basi erecto-appressa patula vel 
patulo-divergentia flexuoso-undulata leviter asymmetrica, e basi latiore semiamplexicauli oblonga apice plus mi- 
nusve rotundato-obtusa breviter euspidata, a medio inde cellulis prominulis, limbum folii tenuem efficientibus, 
minutissime denticulata, costá validiuseula in Cuspidem exeurrente instructa, media cordata acuminata , illis 
duplo breviora, appressa aeumine reeurvo flexuoso integra; folia ramorum minora consimilia ; cellulae areolatae 
hvd fl ; areolae in folii basi majusculae ellipticae 
erni, in ramis plerumque sparsi , in axillis foliorum late- 
à 4 j : perigonii inferne arcte imbricata , apice saepe squarroso- 
incurva; fxtirionk minuta ovata, media et interiora ovato-oblonga , cuncta longe aeuminato-cuspidata (cuspide 
casu interdum bifido) integerrima enervia, e cellulis contexta teneris leptodermis hexaédris, in medio folio sub- 
ex. (parietibus inerassatis flexuosis interruptis), infra apicem rhombeis, in summo apice sedia areolatis 
elongatis. Antheridia 1—2 oblonga recta vel parumper incurva; paraphyses nullae. Flores feminei—. Fruetus— 
