364 KORTH BRAZILIAN EUPHORBIACE.E 



Mores intra bracteas plures pedicellati, umbellati, v. racemu- 

 losi. 



r 



§ 1, Pedicellts mascuUs ternis umhellatis^ umbellis pedicellaiis. 



1. M. Taqmri, Aubl. PI. Gui. p. 870. t. 334. f. 2; ramulis ferrugineo- 

 toraentosis, foliis ovali-oblongis breviter acuminatis basi rotundato- 

 subcordatis subtus tomentellis, umbellis masculis trifloris pedlcellatis. 

 The only certain specimens I have seen are from Leprieur's French 



Guiana collection. Those gathered by Spruce in the forest of Barra, 

 distributed doubtfully under the same name, belong probably to a dif- 

 ferent species, but, being in fruit only, I cannot at present determine 

 them. 



2. M- Piriri, Aubl 1. c. p. 867- t. 334. f. 1; foliis oblongis longe 

 acuminatis basi acutis subtus incanis v. utrinque ramulisque glabris, 

 umbellis masculis trifloris pedlcellatis. 



From Surinam^ Hodmann, n. 409 and 1320. A single specimen in 

 fruit, gathered by Mr. Spruce on the Eio Negro, appears to belong 

 also to this species. The leaves are more evidently serrulate, but that 

 is a variable character in all the Mabece. 



r 



A specimen of Goudot's in the Hookerian Herbarium, from the Mag- 

 dalena river, in New Granada, appears to belong to a distinct species, 

 connecting in some measure the M. Piriri with the M. occidenialis in 

 inflorescence, as the umbels are but very shortly pedicellate, but dif- 

 fering from both in the female flowers and some other points. The 

 specimen, however, is insufficient for a satisfactory description. 



§ 2. Pedicellis masculis ternis umbellatis^ umbellis sessilibus, 



3. M. occidentalis ; foliis oblongis glabris v. vix ad costam ramulisque 

 puberulis, umbellis masculis trifloris sessilibus. Yar. a ; foliis sub- 

 tus incanis. — JU, Piriri, Benth. Bot. Sulph. p. 165. Kl. in Seem. 

 Bot. Herald, p. 102, non Aubl. — Var. ^3; foliis concoloribus glabris. 

 This has much the foliage of M, Piriri, for which Dr. Klotzsch as 



well as myself had mistaken it, but the male umbels are constantly 

 closely sessile, not borne (with its bract) on a pedicel from one to two 

 lines long. The leaves appear also to be of a somewhat firmer texture. 

 The van a was gathered in the Isthmus of Panama by Cuming (n. 1102), 

 Barclay and Seeraann; at the hacienda del Azufre, probably in the 

 same district, by Linden (Herb, du Sad, n. 886), and at Eosarios on 



