FLORA OF MADAGASCAR. 308 
plant is figured in Bory's ‘ Voyage,’ tab. 12, under the name of 
Bambusa alpina. 
FrrtcEs. 
CYATHEA SEGREGATA, n. Sp. 
C. frondibus amplis tripinnatis utrinque glabris facie viridibus dorso 
glaucis, rachidibus stramineis inermibus, pinnis oblongo-lanceolatis, pinnu- 
lis sessilibus lanceolatis, segmentis tertiariis lanceolatis segregatis, fertilibus 
crenatis, venulis 8-10-jugis profunde fureatis, soris costalibus, involucro 
membranaceo, ore truncato. 
Fronds ample, tripinnate, moderately firm in texture, green on 
the upper surface, glaucous beneath, the rhachises quite without 
either prickles or palee. Pinnæ about a foot long in the speci- 
mens. Pinuules contiguous, sessile, lanceolate, 2-23 in. long, 
3-2 in. ERO cut down to the rhachis into lanceolate tertiary 
segments 4.5 in. broad, with a distinct space between each equal 
i m E to a segment, the fertile portion distinctly toothed. 
Y einlets in 8-10 pairs in the lower segments, distinct, deeply 
forked. Sori globose, confined to the lower part of the segments, 
filling up the whole space between midrib and margin. Involucre 
glabrous, membranous, truncate. Receptacle glabrous.—- Central 
Madagascar, Baron 997! 
CYATHEA POLYPHLEBIA, n. sp. 
C. frondibus amplis tripinnatis utrinque viridibus glabris, rhachidibus 
brunneolis inermibus, pinnis oblongo-lanceolatis, pinnulis sessilibus lan- 
ceolatis, segmentis tertiariis lineari-oblongis obtusis obscure crenulatis, 
venulis 10-12-jugis profunde furcatis, soris costalibus, involuero mem- 
36 
branaceo, ore truncato. 
Fronds ample, tripinnate, moderately firm in texture, green 
and glabrous on both surfaces; rhachises brownish, without any 
prickles or palee. Pinne 13 ft. long, 5-6 in. broad. Pinnules 
crowded, sessile, lanceolate, $—2 in. broad, cut down to the rhachis 
into crowded obscurely toothed tertiary segments 4^; in. broad. 
Veins crowded, distinct, deeply forked. Sori confined to the 
lower half of the tertiary segments, filling up the whole space 
between midrib and margin. Involucre cup-shaped, hemisphe- 
rical, membranous, glabrous, truncate. Receptacle glabrous.— 
Central Madagascar, Baron 440! Both this and the last spe- 
cies are nearly allied to C. excelsa, Sw.. and C. Hildebrandtii, 
Kuhn. 
SALVINIA HASTATA, Desv. in Ann. Soc. Linn. Par. vi. 177? 
Stems wide-creeping, sending down abundant tufts of root- 
