196 NORTH AMERICAN FLORA [VOLUME 25 



glabrous, unarmed, or armed with short prickles ; leaves odd-pinnate, 15-25 cm. or more 

 in length ; leaflets 3-7, oblong-elliptic to elliptic or somewhat obovate, 6-12 cm. long, 2-4.5 

 cm. broad, obtusely short-acuminate or occasionally rounded at the apex, cuneate at the 

 base, the margin slightly reflexed, entire or crenulate, glabrous, coriaceous, reticulate-veined, 

 lustrous above, paler beneath and black-punctate ; midrib impressed above, prominent 

 beneath ; panicles axillary and terminal, loosely flowered, 5-10 cm. long, the branches in age 

 glabrous or with few scattered hairs ; staminate flowers : stamens 5, equaling the petals ; sepals 

 5, ovate, acute, 1-1.2 mm. long, 0.8-1 mm. broad ; petals 5, oblong-elliptic or elliptic, 3-3.5 mm. 

 long, 1.5-2 mm. broad; follicles 1-5, the body obovoid, 6-7 mm. long, 4.5-5.5 mm. broad, 

 brown, stipitate, the stipe 4-4.5 mm. long ; seeds elliptic or elliptic-obovoid, 4.5-5 mm. long, 

 black, shining. 



Type locality : Mexico. 

 Distribution : Mexico. 



41. Zanthoxylum duplicipunctatum Wright ; Griseb. Cat. PI. 

 Cub. 49. 1866. 



Fagara duplicipunclata Krug & Urban ; Urban, Bot. Jahrb. 21 : 573. 1896. 



An apparently unarmed shrub with densely leafy, glandular twigs, attaining a height 

 of about 3 m.; bark of the old branches somewhat corky ; young twigs, rachis of the leaves 

 and branches of the inflorescence stellate-pulverulent ; leaves usually odd-pinnate, 5-7 cm. 

 long, the petiole 1 cm. long; leaflets 5-10, opposite, oblong to elliptic or ovate-oblong, 

 2-2.7 cm. long, 0.9-1.5 cm. broad, rounded and emarginate at the apex, rounded and sub- 

 equilateral at the base, sessile, coriaceous, entire or obscurely crenulate, the margin slightly 

 revolute, above lustrous, obsoletely veined and obsoletely glandulose-punctate, beneath 

 much paler, glabrous, the lateral nerves rather indistinct and more or less reticulate ; glands 

 crowded, conspicuous, brown ; petioles and rachis more or less grooved ; inflorescence axil- 

 lary and terminal, simple, shorter than the leaves ; flowers yellowish-green ; sepals 5; follicles 

 solitary, very short-stipitate, oblique, nearly hemispheric, smooth, 6 mm. long. 



Type locality : District of Bahia Honda, Pinar del Rio, Cuba. 

 Distribution : Known only from the type locality. 



42. Zanthoxylum microcarpum Griseb. Fl. Brit. W. Ind. 138. 1859. 



Fagara microcarpa Krug & Urban ; Urban, Bot. Jahrb. 21 : 570. 1896. 



A tree, sometimes attaining a height of 13 m., the bark prickly, the twigs, petioles and 

 rachis yellowish or brownish, stellate-canescent, unarmed or rarely bearing few, brownish 

 prickles; leaves equally pinnate or odd-pinnate, 1.2-2.8 dm. long; leaflets 11-20, rarely 30, 

 oblong to oblong-lanceolate, 2.5-9 cm. long, 1-2.5 cm. broad, rarely 11 cm. long and 3.5 

 cm. broad, acute, acuminate or sometimes rounded at the apex, acute or somewhat rounded 

 at the base, more or less inequilateral, green, lustrous and sparsely stellate-canescent above, 

 paler and stellate-canescent, especially on the midrib and veins, beneath, the margin ser- 

 rate-crenate, the pellucid glands scattered, numerous ; petioles and rachis grooved, often 

 rather stout ; panicles terminal, 1-1.5 dm. long ; pistillate flowers : calyx 1-1.3 mm. broad, 

 the sepals 5, triangular or somewhat triangular-ovate, 0.2-0.3 mm. long ; petals 5, ovate to 

 elliptic-ovate, 1.5-2 mm. long, 0.7-1 mm. broad, acuminate, the apex obtuse; gynoecium 

 2- or 3-carpellary ; styles short, sometimes apparently wanting ; follicles solitary or two, 

 subglobose, 4-5 mm. in diameter, with prominent, elevated verrucose glands; seeds orbicular- 

 reniform, compressed, 2.5-3 mm. broad, black, shining. 



Type locality: Dominica. 



Distribution : Guadeloupe to St. Vincent ; Costa Rica ; also in Trinidad and Brazil. 



Note: Doubtfully distinct from Z. rhoifolium Lam. 



43. Zanthoxylum flavum Vahl, Eclog. 3 : 48. 1807. 



Zanthoxylum cribrosum Spreng. Syst. 1 : 946. 1825. 



Zanthoxylum floridanum Nutt. N. Am. Sylva 3 : 14. 1849. 



Zanthoxylum caribaeum floridanum A. Gray, Proc. Am. Acad. II. 23: 225. 1888. 



Fagara flava Krug & Urban ; Urban, Bot. Jahrb. 21 : 571. 1896. 



An unarmed evergreen shrub or tree, sometimes attaining a height of 12 m., with 

 smooth gray bark, the twigs, petioles, rachis, leaflets, and inflorescence minutely stellate- 



