w
D R Y O S T A C H Y U M . / . Sm .
S o n oblongi s. quadrangulares, nudi, in pinnas terminales contractas biseriatim
dispositi, approximati, subconfluentes. Frondes sessiles, rigidce, 1-2 p ed a le s,
simplices, v el hasi p le rum q u e p innatifidce et stériles, su p ra p in n a tæ , pinnis fe r t i-
lihus sessilibus, cum rachi a r ticu la tis, 6-10 uncias longis, reticulatis, areolis
sporangife ris glahris v el pilosis. Venae, segmentis sterilibus, costæformes;
venulæ compositoe, anastomosantes, areolas suhquadrangulares fo rm a n tes , late r
ibus ra n u life ris, ra n u lis u ltim is liberis v a rie divergentibus : P in n a rum fe r tïlium
venulæ confluentes, in tr a venas costæformes sporangiferæ. J . Sm .
Dryostacbyum splendens. J . Sm . in Hooh. J o u r n .'o f B o t , Z .p . 399.
H a b . Luzon. Cuming (n. 87).
Two other species, Z>. caudatum, (Polypodium, Reinw,) a native of the island of Celebes,
and D . pilosum, J . Sm. a native, like the one here represented, of Luzon, belong to this
Genus. All grow on trees, and, as stated by the author of the Genus, agree in habit
with Drymaria quercifoUa and coronans, but differ by the fertile portion of their fronds
being contracted into rachiform segments, bearing remarkably large sori.
Tab. XCV.—K g . I . Portion o t the frond ¡'magnified: f . 2, 3. Sterile and fertile segments ; nat.
size : f . 4 . P ortion of a fertile segment ; magnijied : f . &, 6. Sporangia ; f . 7. Sporules ; magnified.
I