Part 3, 1911] RUTACEAE 197 



canescent when j-oung, often glabrate at maturity ; leaves odd-pinnate, 1-2.5 dm. long ; 

 leaflets 3-11, commonly 5 or 7, rarely 1, subsessile or short-petioluled, oblong, ovate, lanceo- 

 late, elliptic, or elliptic-oblong, 3-10 cm. long, 1.5-5.5 cm. broad, rounded, obtuse, or obtuse- 

 acuminate at the apex, rounded, subtruncate, or somewhat acute at the base, crenate or 

 nearly entire, frequently inequilateral, yellowish or grayish-green, the pellucid glands 

 numerous ; petioles and rachis often stout, terete, flattish, or somewhat angled ; panicles 

 terminal, 0.5-1.5 dm. long; staminate flowers : calyx 1-1.4 mm. broad, stellate-canescent ; 

 sepals 5, rarely 4, triangular, acutish, 0.5 mm. long ; petals 5, rarely 4, elliptic-lanceolate 

 or oblong-ovate, 2.5-3.8 mm. long, 1-1.7 mm. broad, greenish-white, reflexed when fully 

 expanded ; stamens 5, rarely 4, about as long as the petals, the filaments slender, the anthers 

 ovate, oval, oroblong-oval ; pistillate flowers: calyx about 1 . 5 mm . broad, stellate-canescent, 

 the sepals triangular, acutish, 0.5 mm. long; petals oblong-ovate, oblong-oval, or elliptic- 

 lanceolate, 2.7-3.8 mm. long, 1-1.7 mm. broad, greenish-white, reflexed at maturity ; gynoe- 

 cium 1-3-carpellary ; style or styles short ; follicles obovoid, brown at maturity, 5-9 mm. 

 long ; seeds obovoid, occasionally globose-obovoid, 4-5 mm. long, 3-4 mm. broad, black, 

 shining. 



Type locality : Montserrat. 



Distribution : Bermuda ; subtropical Florida ; Bahamas to St. Lucia. 



Illustrations : Nutt. N. Am. Svlva 3 : pi. 85 ; Sargent, Silva N. Am. pi. JO, 31 ; Sargent, 

 Man./. 480; Britton, N. Am. Trees /. 524, 525. 



44. Zanthoxylum pistacifolium Griseb. Cat. PI. Cub. 49. 1866. 



Fagara pislaci/olia Krug & Urban ; Urban, Bot. Jahrb. 21 : 573. 1896. 



An unarmed shrub about 2 m. high, with a yellowish-gray bark, the branchlets, leaves, 

 and branches of inflorescence densely stellate-pubescent with short hairs ; leaves odd- 

 pinnate, 5-17 cm. long, the petioles 2-4 cm. long, nearly terete, glandular-verrucose, 

 shallowly grooved above or flat; leaflets 7-11, the lateral ones opposite, or the lower pair 

 subopposite, sessile, coriaceous, oblong to oblong-lanceolate, 2-4 cm. long, 1-1.5 cm. broad, 

 obtuse or gland-tipped and mucronate at the apex, at the base rounded, nearly equilateral 

 or inequilateral, above somewhat lustrous and densely reticulate-veined, glandular, the 

 glands brownish, small, somewhat prominent, beneath velvety and with less conspicuous 

 glands ; panicles terminal, 6-7.5 cm. long, the branches glandular-verrucose ; bracts decidu- 

 ous ; flowers not seen; calyx stellate-pubescent; sepals 5 ; follicles 1, rarely 2, obovoid, 

 3-4 mm. long, 2.5-3 mm. thick, short-stipitate, rounded at the apex, brownish-verrucose, 

 the stipe thick ; seeds obovoid, narrowed at the base, 3-3.5 mm. long, 2-2.5 mm. broad. 



Type locality : Road from Baracoa to Saltadero, Oriente, Cuba. 

 Distribution : Cuba. 



45. Zanthoxylum Purpusii Brand. Univ. Calif. Publ. 

 Bot. 3: 381. 1909. 



An intricately branched thorny shrub 1-2 m. high, with a grayish bark ; branches 

 sparsely armed with straight prickles 5-7 mm. long, which are compressed at the base; 

 leaves odd-pinnate, 2-3 cm. long, terminating short branches, the petioles and rachis 

 tomentose ; leaflets 5 or 7, cuneate, the lateral ones 5-10 mm. long, 3-5 mm. broad, the 

 terminal somewhat longer and broader, all rounded and often emarginate at the apex, 

 rounded or cuneate at the base, crenulate, sessile, pubescent on both surfaces ; inflorescence 

 cymose-pauiculate, 1-1.5 cm. long, the branches tomentose ; pedicels short ; specimen in 

 immature fruit. 



Type locality : Vicinity of San Luis Tultitlanapa, Puebla. 



Distribution: Known only from the type locality. 



46. Zanthoxylum Clava-Herculis L,. Sp. PI. 270. 1753. 



Zanthoxylum cavolinianum Lam. Encyc 2 : 39. 17S6. 



Zanthox'ylonfraxinifolium Walt. Fl. Car. 243. 1788. Not Z. J rax ini : folium Marsh. 1785. 



Fagara fraxini folia Lam. Tab. Enevc 1 : 334. 1791. 



Zanthoxylum tricarpum Michx. FLBor. Am. 2 : 235. 1803. 



Zanthoxylum aromaliaim Willd. Sp. PI. 4 : 755. 1806. 



