Zanthoxylum.~\ xxxm. rutace^ (oliver). 305 



of extremities and common petiole spreading or ascending. Leaves mult i- 

 foliolate, 2-3 ft. or more in length ; leaflets rather coriaceous, shortly petio- 

 lulate, oblong or varying from ovate to oblong-lanceolate, shortly and rather 

 abruptly acuminate, very oblique at the base, semi-cordate or one side 

 broadly rounded ; 0-8 in. long, 2^-3 in. broad. Male fl. very numerous, in 

 large pyramidal branching panicles 1-2 ft. long collected toward the ex- 

 tremities of the branches, in the axil of lanceolate bracts f— 1 in. long ; mi- 

 nute, 5-merous, sessile or subsessilc. Petals slightly imbricate. Rudiment 

 of the pistil subulate, upon a thickened disk. Female flower and fruit not 

 seen. 



Upper Guinea. Prince's Island, Mann ! I 



2. Z. senegalense, DC. Prod. i. 726. A glabrous shrub or tree at- 

 taining 20 ft. Prickles of the extremities and common petiole usually more 

 or less recurved, acute. Leaves 5-9-foliolate ; leaflets alternate or subop- 

 posite, petiolulate, rather coriaceous, obovate-oblong or elliptic-oblong, apex 

 rounded and very shortly and broadly apiculate depressed or retuse, cuneate- 

 rounded at the base, 2-3£- in. long, 1-1| in. broad; petiolules articulated, 

 £ in. or less. Plowers small, white, sessile ; in terminal branching panicles 

 °r in the axils of the uppermost leaves 3-6 in. long or more. Male flowers 

 pentamerous. Petals imbricate. Rudiment of pistil subulate, upon a 

 thickened central disk. Fruits rather crowded, in paniculate clusters shorter 

 than the leaves, 1-carpellary, 1-seeded. Seeds shining, blue-black.— Fagara 

 wnthoxyloides, Lam. Encycl. ii. 446. Zanthoxylum polygamum, Schum. et 

 Thonn. Guin. PI. 433 (ex descr.). 



Upper Guinea. Senegal, Perrotlet I Cape Coast, T. Yogel ! Niger, Barter ! 



3. Z. melanacanthum, Planch, in Herb. Kew. Glabrous. Prickles 

 strong, straight, acute. Leaves apparently 5-9-foliolate; leaflets mem- 

 branous, elliptical, shortly and rather abruptly acuminate, rounded at the 

 °ase, broadly crenulate, 4-5 in. long, 2| in. broad, subsessile or very 

 shortly petiolulate. Female flowers in terminal, minutely puberulous pa- 

 rtes, shorter than the leaves in our specimens. Flowers 4-merous, equal- 

 ing the pedicels. Sepals minute, rotundate. Petals oblong-lanceolate, at 

 lei »gth revolute above. Carpel solitary. Male flower and mature fruit not 

 seen. l J 



Upper Guinea. Sierra Leone, T. Yogel! Afzelius! 



*• Z. rubescens, Planch, in Fl. Nigrit. 270. A glabrous prickly shrub 

 8-1 f -' Brancnes reddish, with acute recurved prickles. Leaves pinnate, 



t0 in., common petiole aculeolate ; leaflets "about 11," broadly oval or 

 oblong-ellipti ca i with a narrow obtuse acumen, cuneate or rounded at the base, 

 entire or obsoletely serrulate above, 2-3£ in. long, 1-1* "»• broad - MaIe 

 owers whitish, in large, many-flowered, somewhat pyramidal, minutely pu- 

 nerulous, terminal panicles ; tetramerous. Pedicels slender, about equalling 

 «• flower. Sepals minute, rotundate, ciliolate. Petals rather thin, elhptic- 

 ance °late, slightly imbricate. Rudiment of ovary minute. Female flower 

 and fruit not seen. 



vol. i. - x 



