FERNS OF NORTH-WEST MADAGASCAR. 
By J. G. Baxer, F.R.S. 
Tae Herbaria of Kew and the British Museum have lately 
obtained, through H. Grose Smith, Esq., of Harley Street, London, 
sets of ferns collected by Mr. J. T. Last in the north-west of Mada- 
r, which contain i iti 
from the Bé Kilus Mountains, and contains the following species :—- 
33*. Cyathea Lastii, n. sp. Frond ample, tripinnate, ae 
rately firm in texture, green and glabrous on both surfaces ; rachise 
naked, yellowish br brown. Pinne oblong-lanceolate, 2 ft. ee ai 
long, 8-9 in. broad ; pinnules lanceolate, caudate, sessile, } in. 
broad, cut down to the rachis into lanceolate-crenate sp far 
# in. broad. Veins 9-10-jugate, very distinct, forked. Sori Spies. 
not reaching the tip of the segments. Indusium large, firm, cup- 
shaped, with an entire truncate throat.—Allied to the West Indian 
C. Serra Willd. 
64*, Alsophila —— n.sp. Frond oblong-deltoid, bi- 
pinnate, moderately fi in texture, green and naked o n b oth 
surfaces ; sere ieadedl brown, naked. Pinne la chanted ocala: 
a foot long, 2 in. broad, cut down to the rachis into entire obtuse 
linear-oblong pinnules $-} in. broad. Veins 20-80-jugate, close, 
very distinct, forked. Sori crowded, costular, not reaching the ti 
segments. Receptacle densely pilose.—Habit and cutting - 
Cyathea Pervilleana Fée and, C. quadrata Baker 
64*. A. castanea, n.sp. Frond rh tripinnate, — 
lon 
pinnules lanceolate, sessil Sica in. broad, cut down to the rachis into 
linear-oblong tertiary segments. Veins 8-9- eats: very distinct, 
forked. Sori filling the whole under surface of the te ae seg- 
a segme ent.—Allied to A. Boivini 
Dicksonia madagascariensis Kunze. ‘An authentic specimen lately 
seen shows this to be identical with D. hypolepidoides Baker. It 
stands on the boundary-line between Dicksonia and Davallia, and 
was classed by Moore as a Microlepia. 
n.sp. Rootstock slender , sShort- 
inciwed to an upeurve ed point, i in. road . Veins close, 
simple, flabellate. Sori EER Indusium glabrous, ‘son 
Rharrow.—. 
dis ensifolia Sw. 
B2 
