FLORA OF MADAGASCAR. 95 
narrowed gradually to the base and aeute point, quite glabrous 
on both surfaces, so thick in texture that no glandular dots are 
visible, and the distant erecto-patent main veins are fine and faint. 
Pedunele at most i in. long; pedicels not more than j-1 in. 
Sepals j in. long, with many black dots and lines. Petals a little 
longer than the sepals, elliptic, subacute, hairy on the face. Pha- 
langes of stamens shorter than the sepals. Berry glabrous, 1 in. 
in diam., with a single half-orbicular laterally flattened seed 4 in. 
long in each of the five cells.— Central Madagascar, Baron 
450! 
PsoROSPERMUM MICROCARPUM, n. sp. 
P. ramulis glabris, foliis distincte petiolatis late ellipticis parvis subinte- 
gris facie glabris dorso tenuiter pilosis, cymis 5-6-floris terminalibus 
breviter pedunculatis, pedicellis quam flos paulo longioribus, sepalis ovato- 
oblongis obtusis, staminibus circiter 15 pentadelphis, baccis parvis glo- 
bosis. 
A much-branched sbrub with slender drab terete branchlets. 
Petiole 1 in. long; blade 1-11 in. long, 2-1 in. broad, moderately 
firm in texture, green on both surfaces, not perceptibly gland- 
dotted, with 6-7 pairs of distinctly marked ascending main veins, 
Peduncles not more than 3 in. long; pedicels j-l in., thinly 
pilose. Calyx ;l in. long, spreading from the berry, hairy on 
the outside. Phalanges of stamens as long as the sepals. Berry 
glabrous, i-l in. in diam. in the dried specimens. Styles jl; in. 
long, with a distinctly capitate stiyma.—Central Madagascar, 
Rev. R. Baron, received Oct. 1881. 
All these five species of Psorospermum, along with P. Fanerana 
and P. androsemifolium, described in Trimen’s * Journal,’ 1882, 
p. 19, belong to a group different from any of those of Spach, 
marked by stamens in five bundles, nearly always 3 in each, and 
non-coriaceous entire leaves greenish on both surfaces: There is 
a misprint, Joc. cit., in the description of P. androsemifolium, of 
which the calyx is 4; in., not 1 in. long. The flowers of Psoro- 
spermum never rival in size our familiar Hypericums. 
Ruoporrsa ALTIVOLA, Thouars, Hist. t. 13. 
Mr. Baron has been fortunate enough to rediscover this finest 
of all the Chlenads, which, so far as we know, has not been 
gathered since its original discovery by Du Petit Thouars nearly 
a century ago. The following description is drawn up from the 
specimens which he has sent home (nos. 1980! and 2173 !). 
