SCHOMBURGK'S GUIANA PLANTS. 297 
acuminatis basi cordatis tenuibus membranaceis viscoso-pilo- 
sulis margine ciliatis vix minute serrulatis, panicula pyrami- 
data multiflora, ramis dichotomis, bracteis minutis, floribus 
brevissime pedicellatis 4-meris 8-andris, calyce glanduloso- 
puberulo dentibus minutis, antheris oblongis, capsula bilocu- 
lari.—Frutex 5—6-pedalis. Folia pleraque bipollicaria. 
Flores fere S. dysophylle, v. vix majores.—British Guiana. 
Schomburgk, n. 999. : 
331. S. circeoides, Mart. in DC. Prod. lI. p. 116.—Anthere 
alterne ovato-oblongze, alternze oblonge fere duplo longiores. 
Connectivum ut in precedentibus anthera brevius.— Rio 
Parime. Schomburgk. 
338. S. circeifolia, DC. Prod. IIL. p. 116, (var. glabrata). 
Antherze praecedentis. Folia basi late cordata, lucida, sub- 
pellucida. Petioli et ramuli pilis paucis longis ciliati v. rarius 
nudi—Pedrero. Schomburgk, n. 863. 
339. S. aquatica, Mart. in DC. Prod. UI. p. 116.— British 
Guiana, Schomburgk, n. 456. French Guiana, Leprieur. 
Herb. Par. n. 8T. Bahia, Gardner, n. 881. 
340. Appendicularia thymifolia, DC. Prod. III. p. 114.— 
French Guiana. Leprieur, Herb. Par. n. 64 and 84. 
TriBeE III. LAVOISIEREÆ. 
The Lavoisieree do not form so natural a tribe as some 
others; some genera having the habit of Rhexiee, and indeed, 
even in respect of the form of the seeds, the line of distinc- 
tion is difficult to trace between them; others again have the : 
habit of Miconiez, and some have a facies different from that - 
of all other Melastomacee. 
.. Among these, a very natural group consists of the East 
Indian genera Sonerila, and Sarcopyramis, and the American 
inga, Bertolonia and perhaps Lithobium (Bongard). They 
. ae all low herbs, with obconical or turbinate calyces, trian- 
Es gular capsules usually truncate, and a peculiar inflorescence, 
~ Which renders it easy to distinguish them. | 
Rhynchanthera, Siphanthera, Meisneria, and Poteranthera, 
_ (Bongard,) are known by the sterility or abortion of half the 
Vol. 11.—No. 14. 20 ; 
