BeteropterysJ] xxx. MALPiGHiACEiE (olivek). 277 



latter about the middle of the pedicels. Samara semicircular, usually ob- 

 lique ; wing rigid, coriaceous, entire, rounded or obtuse at the outer extre- 

 mity. — Banisteria leona, Cav. Diss. 424. t. 247. (fruclu excl.) ex Juss. 1. c. 

 //. Jussieui, Hook. f. Fl. Nigrit. 246. 



Upper Guinea. Senegambia! Sierra Leone, Afzelius ! T. Vogel ! and others; Grand 

 Bassa, T. Vogel! Brass, Barter! Mouth of the Niger, Nun river, and Prince's Island, 

 Mann I 



Lower Guinea. Congo, Smith ! 



I cannot but regard the form described as H. Jussieui in the Niger flora with the wing 

 of the samara, " prodnced equally above, below, and outwardly," as belonging to the original 

 species of Jussieu. Vogel's fruits appear to be scarcely mature, and in other respects — 

 foliage, flower, aud inflorescence — there is no difference. In a specimen from Priuce's 

 Island, some of the leaves, upon a lateral shoot, are remarkably triplinerved. 



Heteropterys macroptera, Keichb., is referred by A. Jussieu (1. c.) to Securidaca. 



2. ACRIDOCARPUS, Guill. et Perr. ; Benth. et Hook. f. Gen. PL 



i. 256. 



Calyx 5-partite with 1 or more sessile or sunken glands, rarely eglandulnr. 

 Petals unguiculate or narrowed to the b;ise, entire or the inner slightly fim- 

 briate. Stamens 1 0, all antheriferous ; filaments short, free or very nearly 

 so ; anthers large, lanceolate-oblong, acute, glabrous, usually dehiscing at the 

 apex by a short or pore-like slit. Ovary 3-celled or 1 cell abortive, pilose. 

 Styles 2, long, filiform, circinate in bud. Samaras usually 1 or 2 with a 

 straight or oblique vertical wing thickened on the upper margin.— Shrubs, 

 erect or scandent. Leaves usually alternate, entire or sinuous with glands at 

 the base beneath, exstipidate. Flowers in simple elongate corymbose or 

 panicled racemes, yellow. Bracts and bracteoles minute at the base of the 

 pedicels. 



A small genus nearly confined to Africa and Madagascar. One species occurs south of 



the tropic of Capricorn. 



Leaves 4-9 in., oblong-elliptical, cuspidate, glabrous. Flowers race- 

 mose or paniculate. Bracts 1 line or less, triangular. Wiug H- , . „ ., 

 ]ij n I. A. bmeathmanni. 



Leaves 3-5 in., obovate or broadly elliptical, retuse, with obtuse or 



obsolete cusp. Bracts ovate, 2 lines. Wing 1*-H in. . . . t. J. plagioptems. 

 Leaves 2£-4 in., oblong-elliptical, subacute or cuspidate, glabrous. 



Mowers corymbose. Bracts subulate, rigid. Wings 1 in. or less 3. A. corymbosus. 

 Leaves 4-7 in., oval-oblong, with matted deciduous tomentum, at 



length glabrate at least above. Flowers racemose. Bracts tn- 



t angular-lanceolate. Wings 1-U (pale green) *• A - chhroptems. 



Leaves 3-4 in., oblonjr or oblanceolate, quite glabrous. Flowers ra- 



cemose. Bracts minute, subulate. Wings 1-U in 5. A. zanzibancus. 



1. A. Smeathmanxii, Guill. et Terr. Fl. Seneg. i. 124. A shrub vary- 

 ing from 5-20 ft., often climbing, glabrous or with the extremities rusty-pu- 

 bescent at first. Leaves alternate, membranous or rather coriaceous elongate 

 oblong-elliptical or obovate-oblong, cuspidate, more or less rounded or cu- 

 rate at the base with a pair of glands at the junction of the short thick 

 petiole, entire or undulate, glabrous or early glabrescent, 4-9 in. long, l^ 6 



