MR. BENTHAM ON TROPICAL LEGUMINOSE. 315 
Detarium zeylanicum, Thwaites, Enum. Ceyl. Pl. 414. 
Arbor ingens; folia fere C. Parivoe. Flores multo minores, pedicellis brevibus. 
Hab. Galpatta, near Caltura, Ceylon (Thwaites, n. 3714). 
9. C. BANTAMENSIS.  Foliolis 1-3 ample oblongis v. obovali-oblongis obtusis coriaceis 
glabris, racemis densifloris puberulis folia excedentibus. 
Pryona bantamensis, Miq. Fl. Ind. Bat. i. pars 1. 1081. 
Touchiroa bantamensis, Hassk. Retzia, 1. 202. 
Arbor. Foliola 4-8-pollicaria, petiolo communi brevi. Racemi sæpe ultrapedales, fere a basi floribundi, 
pedicellis brevissimis. EIS. 
Hab. Bantam province, in Java (Hasskarl). 
XVII. CRYPTOSEPALUM, Benth. in Benth. et Hook. f. Gen. Pl. 584. 
(Tribe CyxowETREX. Tropical Africa.) 
Cuar. Gex. Calycis tubus discifer brevissimus ; segmenta 4, minuta, squamiformia. Petalum 1, sessile, 
orbiculatum. Stamina 3, filamentis brevibus; antheræ oblongæ, versatiles, loculis longitudinaliter 
dehiscentibus. Ovarium breviter stipitatum, liberum, 2-ovulatum; stylus filiformis, stigmate 
terminali truncato. Legumen ..... —Arbuscula. Folia abrupte pinnata. Flores parvi, in 
racemos breves axillares dispositi. Bractez ad basin racemi junioris squamiformes, imbricatæ, mox 
_deciduæ ; bracteolie majusculæ, concave, valvatæ, alabastrum includentes. | 
This genus is founded on a small African tree which Hooker, in the : Niger Flora, 
had from imperfect specimens, referred doubtfully to Cynometra, of which it has the in- 
florescence. We have now, however, excellent flowering specimens which show a struc- 
ture much more nearly allied to that of Copaifera, but differing in several essential 
points which appear to justify the raising it into a genus distinct from both Cynometra 
and Copaifera. The buds, closed before flowering, and opening into concave valves, are 
as in Brachystegia; but the presence of a rudimentary calyx inside shows, without 
doubt, that the outer covering must be referred to bracteoles. The stamens, which in 
Cynometra have the complete number of ten, and in Copaifera have only occasionally 
one or two of the ten deficient, are here reduced to three ; and the petals, five in Cyno- 
metra, and none in Copaifera, are here reduced to one small one. The pod is unknown, 
but the ovary is entirely that of the Cynometree. 
The following is the only species known :— 
C. TETRAPHYLLUM. (Plate XLIII. B.) 
? aphyllum, Hook. f. Fl. Nigr. 329. hod iR Ba 
ent: j im : inflorescentia parce puberula. Gemmæ pens imbricatis x — 7 
Foliola sæpissime bijuga, oblique ovata, subfalcata, valde insequilatera, obtusa ve € n: ig Bem 
tenuiter venosa, jugi superioris 1-13 vel in ramulis sterilibus 2 poll. longa, Jug Fes aes o 
breviora, petiolo communi brevi tenui. Flores parvi, roseo-albi numerosi, ^ m se = 
foliis breviores dispositi. Bracteæ lanceolate, membranaceæ, RU MES. enen.. 
dicelli graciles, 2-3 lin. longi. Bracteolæ in speciminibus vix 14 lin. longæ, florem omnino we 
dentes. Calycis tubus vix } lin. longus, lobis adhuc brevioribus. Petalum 1 lin. longum, suborbi- 
culatum. Genitalia bracteolis breviora. Flores tamen vix perfecte evoluti. ae 
Hab. West tropical Africa. Sugar-loaf Mountain, Sierra Leone (G. Don, Barter). u ıe flowers 
