340 Britton: Studies of West Ixdiax plants 



The proposed species is most nearly related to S. hirsnta ad- 

 pressa Wernham, which has been reported from Trinidad. It 

 differs essentially, however, in the short narrow calyx-lobes and 

 in the short scant pubescence of the upper leaf-surface. 



61. UNDESC RIBED SPECIES FROM JAMAICA 



Pilea Maxoni sp. nov. 



Stem trailing, freely rooting at the nodes, 3-6 dm. long or 

 longer, rather densely pubescent, the pubescent branches erect, 

 6-12 cm. high or higher. Stipules ovate-orbicular, rounded, sub- 

 membranous, 3-6 mm. long, sometimes broader than long; leaf- 

 pairs nearly equal; leaves ovate, regularly crenate, 1-3 cm. long, 

 acute, acuminate, or some of the smaller ones obtuse at the apex, 

 obliquely obtuse or rounded at the base, 3-nerved from above the 

 base, sparingly pubescent and reticulate- veined beneath, the upper 

 surface nearly veinless, with long, flat scattered hairs and some 

 short ones, the linear glochides largely marginal only; petioles 

 slender, pubescent, as long as the blades or shorter; pistillate 

 inflorescence paniculate, slender-peduncled, about 6 cm. long, the 

 staminate shorter; sepals lanceolate or oblong-lanceolate. 



Rocky woods in the Cockpit Country, Jamaica. Type, Maxon 

 & Killip 1555, from near Mocho, above Catadupa, April 3, 1920; 

 previously collected near Troy, June 28, 1904 {Maxon 2834), our 

 specimen of this number barren. 



Zanthoxylum Harrisii P. Wilson sp. nov. 



An unarmed tree 15-18 m. high, with grayish-brown branches. 

 Leaves equally pinnate, 2-3.5 dm. long, the petioles and rachis 

 terete, glabrous or nearly so; leaflets 8-12, alternate or sometimes 

 opposite, short-petioluled, elliptic-lanceolate to elliptic, 7-15 cm. 

 long, 4-5 cm. broad, coriaceous, acuminate at the apex, inequi- 

 lateral at the base, entire, lustrous above, the midvein impressed, 

 paler beneath, the midvein prominent; inflorescence terminal or 

 lateral in the axils of the upper leaves, the branches densely 

 puberulent; staminate flowers: calyx lobes 5, triangular-ovate; 

 petals 5, lanceolate, 3 mm. long, 1.5 mm. broad, stamens 5, 

 exserted. 



St. George's, Portland, Jamaica, March 30, 191 8 (Harris 

 12878). 



Salvia clarendonensis sp. nov. 



A spreading shrub with weak stems and branches 2-3 m. long, 

 the twigs, petioles and inflorescence puberulent. Leaves slender- 



