SCHOMBURGK’S GUIANA PLANTS. 145 
278. I. (Leptinga) wmbellifera, DC. Prod. II. p. 432.— 
Ashrub. British Guiana. Schomburgk. ; 
The three last, together with J. flagellifera, Mart., and three 
others I have from Brazil, are remarkable from their umbel- 
late inflorescence, the pedicels being very numerous, slender, 
and half an inch or more in length. Amongst them Blan- 
chet’s n. 2833, and Gardner's n. 2138, have a very distinct 
habit and large foliaceous stipules. They probably should 
form a separate section or perhaps even a genus, were the 
fruit known. 
Another group of Inge spuria, includes J. fruticosa, Mart., 
T. Diadema, Mart., probably also Cuming's n. 1282, and a 
few others. I should propose for it the sectional name Dia- 
. dema. The flowers are in globose heads, usually hanging 
. from the end of a long axillary peduncle. 
279. I. (Bourgonia) Bourgoni, DC. Prod. lI. p. 434.— 
Banks of rivers, British Guiana. Schomburgk, n. 471.— 
This is one of a third section comprised in the Znge spurie . 
of Martius, and characterised chiefly by the long loose spikes 
of small flowers. I have above twenty™species including 
Gardner's Nos. 365 and 985. i Eo 
280. Parkiæ sp.—Rio Negro, Schomburgk, n. 973. "The 
leaves sent under the same number belong to Heterostemon 
mimosoides, Desf., so that I am unable to determine which 
species of Parkia this is. The flowers are those of the origi- 
nal Mimosa biglobosa, or Parkia Africana, Br. 
This genus has been considered by Wight and Arnott as 
forming a distinct subtribe, on account of the imbricated zsti- 
vation of the corolla pointed out by Brown. This imbrica- 
tion is however but slight; and the petals are, as in Inga, 
Connected so far up in a tube, that upon the whole, in their 
arrangement, they are perhaps not so different from Inga as 
May be supposed at a first view. Iam however only ac- 
quainted with three species, P. Africana, P. biglandulosa, and 
i few Brazilian one, (Blanchet n. 2868, and Gardner, n. - ia 1 
1582), and I have never seen Erythrophleum, the other genus — — 
Vol. 11.— Ne 1E Ü 
