Part 3, 1911] RUTACEAE 185 



between the crenatures larger, conspicuous, pellucid ; inflorescence terminal or rarely lateral 

 by the abortion of the primary axis, corymbose ; staminate flowers : sepals 3, 0.8-1 mm. long, 

 connate below, the free parts open in aestivation, shortly triangular, obtuse, entire ; petals 

 3, in aestivation cochleate-imbricate, elliptic or ovate, 2.5-3 mm. long, 1.5 mm. broad, at 

 flowering time erect-spreading, glabrous ; stamens 3, the longer filaments nearl}' as long 

 as the petals ; anthers ovate or short-ovate, 1 mm. long ; ovary rudimentary, with 3, short, 

 very obtuse connivent apices ; pistillate flowers : gynoecium 3-carpellary ; ovaries short- 

 ovoid ; styles projecting from the ventral side of the carpels near the apex, free, almost 

 equaling the carpels; follicles 2 or 3, globular or ovoid-globular, 4-5 mm. long, 3.5-4 mm. 

 broad. 



Type locality : Santo Domingo. 

 Distribution : Hispaniola. 



12. Zanthoxylum Hartii (Krug & Urban) P. Wilson, Bull. 

 Torrey Club 37 : 85. 1910. 



Fagara Hartii Krug & Urban ; Urban, Bot. Jahrb. 21 : 586. 1896. 



A small, glabrous tree or shrub, about 2 m. high, with a grayish bark, bearing hard- 

 corky prickles, two or three of them sometimes united and forming ridges, 1-1.5 cm. long, 

 or wart-like or subpyramidal ; branches, petioles, and rachis unarmed ; leaves odd-pinnate, 

 or rarely equally pinnate, 3.5-10 cm. long ; leaflets 3-9, elliptic to oval or obovate, the 

 lateral leaflets 1.5^4.3 cm. long, 0.8-2.8 cm. broad, the terminal leaflet often longer and 

 broader, rounded or obtuse at the apex, acute and somewhat inequilateral at the base, 

 rather dark-green and lustrous above, paler beneath, coriaceous, the margin crenulate, 

 the glands beneath usually impressed and opaque, rarely very sparsely pellucid-glandular ; 

 petioles and rachis grooved ; inflorescence terminal, 1-4 cm. long; staminate flowers (unex- 

 panded): calyx 1.7-1.9 mm. broad, the sepals 3, triangular, acute or obtuse, the margins 

 denticulate and somewhat lacerate ; petals 3, elliptic to oval, 2.5-3 mm. long, 1-2 mm. 

 broad ; stamens 3, the anthers oblong to oblong-ovate ; pistillate flowers : gynoecium 3-car- 

 pellary; follicles 2 or 3, occasionally only 1, and accompanied by two abortive carpels, sub- 

 globose or ovate, 4-6 mm. long, brownish or greenish-brown at maturity, apiculate; seeds 

 subovoid or rarely subglobose, 3.5-4.5 mm. long, occasionally obtusely pointed at the ends, 

 black, shining. 



Type locality : Jamaica. 

 Distribution : Jamaica. 



13. Zanthoxylum jamaicense P. Wilson, Torreya 9 : 32. 1909. 

 A glabrous tree, 5-10 m. high, with a prickty trunk, the branches unarmed or with few, 

 slender, brownish prickles 3-6 mm. long; leaves odd-pinnate, 13-24 cm. long, the leaflets 

 3-9, oblong to oval, occasionally somewhat obovate, 2.8-11 cm. long, 1.5-4.8 cm. broad, 

 sessile or short-petioluled, more or less crenulate, obtusely acuminate or rarely rounded at 

 the apex, equilateral or inequilateral and cuneate at the base, dull or somewhat lustrous 

 above, paler beneath, the venation more prominent than above ; terminal leaflet usually long- 

 petioluled, the petiolules often articulate at the summit; inflorescence terminal, paniculate- 

 corymbose; staminate flowers ( immature): sepals 3, semioval to broadly triangular ; petals 3, 

 ovate; stamens 3; pistillate flowers : sepals 3, broad^- triangular ; petals 3, ovate, 2-2.2 mm. 

 long, 1-1.2 mm. broad; gynoecium 3-carpellary ; ovaries sessile; follicles (immature) 2, 

 accompanied by one abortive carpel, or solitary and accompanied by two abortive carpels, 

 subglobose, 4 mm. in diameter, brown, apiculate, the surface pitted. 



Type locality: Dolphin Head Mountain, Jamaica. 

 Distribution : Known only from the type locality. 



14. Zanthoxylum coriaceum A. Rich. Ess. Fl. Cuba 326. 1842. 



Fagara coriacea Krug & Urban ; Urban, Bot. Jahrb. 21 : 591. 1896. 



A prickly aromatic shrub, 1-4 m. high, or a tree sometimes 6 or 7 m. high, the bark rather 

 smooth, gray, bearing mostly near the base, many short, conic, pyramidal, or flattish corky 



