SCHOMBURGK’S GUIANA PLANTS, —— 73 
—Genera Gymnocladus, Linn.; Guilandina, Linn. ; Poinciana, 
Linn.; Coulteria, Humb. et Kunth; Cesalpinia, Linn.; Pel- 
tophorum, Vog.; Schizolobium, Vog.; Mezoneurum, Desf.; 
Pterolobium, Br.; Colvillea, Boj. (ex ic. et descr.) - Clado- 
| drichium, Vog.; Hoffinanseggia, Cav.; Pomaria, Cay.; Melano- 
sticta, DC.—Genus Moldenhawera, Schrad., hinc Euce@sal- 
pinieis, hine Cassieis, v. Amherstieis affine est, 
Tripe III, Cassiee, Calyx 5-partitus. Petala 5. Stamina 
vix perigyna, 10 vel pauciora, nonnulla sepius difformia v. 
deficientia,  Antherze seepius magne: oblonga v. quadrangu- 
lares, apice v. rarius foramine basilari dehiscentes. varii 
stipes liber. Folia abrupte v. rarius subimpari-pinnata.— 
Genera Cassia, L.; Labichea, Gaudich. ; Dicorynia, Benth. 
Trige IV. Swartziee. Calyx valvatim dehiscens, nunc 
irregulariter rumpens, nunc usque ad basin in lacinias 4—5 
subzequales fissus. Petala 5 vel pauciora, sepe unicum: vel 
nullum. Stamina indefinita, nunc pauca numerosissima, 
subsequalia v. valde inzequalia dissimilia, cum petalis subhy- 
pogyna v. rarius distincte perigyna. Folia impari-pinnata 
1-pluri-foliolata. Bracteolze ssepius nullae.— Genera Martiusia, 
Benth.; Zollernia, Nees et Mart. ; Swartzia, Willd.; Cor- 
dyla, Lour.; Allania, Benth. i: 
Trige V. Amherstiee. Calyx basi tubulosus persistens, 
. laciniis 4—5 concavis imbricatis per anthesin reflexis v. deci- 
duis. Petala 5 v. pauciora sape unicum. Stamina 10 v. 
. Stepius pauciora v. plura, nonnulla v. omnia seepius longissima 
in alabastro replicata. Ovarii stipes cum calycis tubo uno 
latere sepius connatus. Folia abrupte v. rarissime impari- - 
pinnata pluri-juga.—Genera, Brownea, Jacq.; Elizabetha, 
Schomb. ; Heterostemon, Desf.; Amherstia,- Wall.; Jonesia, — 
Roxb.; Humboldtia, Vahl.; Schotia, Jacq.; Theodora, Medik. ; 
Afzelia,'Sm.; Eperua, Aubl.; Parivoa, Aubl.; Campsiandra, 
Benth.; Tachigalia, Aubl. ; Exostyles,* Schott. ; Melanozylon, 
_* This is a somewhat anomalous genus, especially in the great regularity — 
Of the stamens; I do not however find the regularly twisted estivation — 
~ figured by Endlicher in his Atakta; in my specimens, the upper petal is 
~ Constantly overlapped by both the adjoining ones. 4 ku 
.. Vol. H.— No. 10. L 
