FLORA OF BRAZIL. 97 
Has. Lord Auckland's group. 
Fronds scarcely half an inch long, about one tenth of an 
inch high. The concave frond, with entire connivent lobes, 
reminds one of Collema granulatum, Ach.; but, in the absence 
of buds and of any fructification, the structure of the 
frond seems to ally this species to Riccia; along the longi- 
tudinal axis the frond is thick, carnose and of a very spongy 
texture. 
Contributions towards a FLoRA of BRAZIL, being the distinc- 
tive Characters of a Century of New Species of Plants from 
the Orcan MounraiNs, by GEORGE GARDNER, Esa., 
F.L.S. Superintendent of the Royal Botanic Gardens, Ceylon. 
Continued from p. 355 of Vol. 1H. 
BixaAcEx. 
RALEIGHIA. Genus novum.* 
Cnan. Gen. Flores hermaphroditi. Calyx quadripartitus, 
persistens, laciniis æstivatione valvatis, oblongo-lanceolatis, 
acutis, trinerviis, extus pubescentibus. Corolla nulla. Sta- 
mina plurima, fundo calycis pluriseriatim inserta: filamenta 
* This remarkable plant is unlike Biracee (i. e., Flacourtianeæ or Prock- 
tiacee of Bennett Pl. Jav. Rar. p. 190), and so near in habit to Belangera, 
that I have carefully compared my specimens with the above description. 
It appears in all essential points to be accurate, except that Mr. Gardner 
had overlooked the interpetiolar foliaceous stipules, which had probably 
already fallen off in his specimen. The leaves are strictly opposite, and 
the petioles connected by a transverse prominent line, after the fall of the 
stipules; the racemes are usually terminated by a tuft of leaves, as in 
many Cunoniaceæ; the divisions of the calyx are slightly unequal and 
decidedly valvate in æstivation, and are united at the base in a short, 
broadly turbinate tube; there are no glands ; the staminal disk adheres 
to the calyx up to the base of the divisions ; the ovary is sessile, but per- 
fectly free and unilocular, with the ovules arranged in a double row along 
linear, nerviform, parietal placentæ, of which I have generally observed 
three, but I have also met with two only. My seeds are not quite ripe ; but, 
as in Cunoniacee, I find an outer integument, thick and somewhat coria- 
ceous, and an inner membranaceous one. Thus the whole of the charac- 
ters would place Raleighia among Cunoniacee, near Belangera ; excepting 
