\y 



32 



broader leaves. Continuing my journey around the pond I found 

 back in the bushes at the margins other specimens with the 

 broad leaves and stouter appearance of vS. longirostra, but I also 

 found all manner of intergradation between the two, just as one 

 would find with 5'. latifolia. In fact as many forms could have 

 been found as there have been of the common plant. As to the 

 comparative length of bracts and pedicels all I can say is that 

 these organs varied with individual plants just as in ^S. latifolia, 

 and differences in their comparative length are of no value in 

 separating the plants under discussion. 



My conclusion then is that 5". longirostra and .S. Engelinanniana 

 as described in the manuals are but forms of the same species. 

 .Whether 6". Engelinanniana is technically based on specimens 

 really representing a species distinct from 6". longirostra, is a 

 question which Dr. Small is now investigating for the North 

 American Flora. At all events, however, the characters hereto- 

 fore relied on to separate these plants are plainly insufficient. 



NOTES ON RUTACEAE — II 



Xanthoxylum cubense P. Wilson, comb. nov. 

 Zanthoxyhun juglandifoliuni Rich. Ess. Fl. Cub. 332. 1845. 



Not WiUd. 1806. 

 Fagara juglandifolia Krug & Urban, Bot. Jahrb. 21 : 587. 1896. 



Type locality : In high mountains of Vuelta de Abajo and 

 around Guanimar, Cuba. 



Distribution : Cuba. 

 /;. Xanthoxylum jamaicense P. Wilson, sp. nov. 



A glabrous tree 5— lom. tall with a spiny trunk; branches un- 

 armed or armed with few, solitary, slender, brownish prickles, 

 3—6 mm. long; leaves odd-pinnate, 13-24 cm., long ; leaflets 3—9, 

 oblong to oval or somewhat obovate, 2.8-1 1 cm. long, 1.5-4.8 

 cm. broad, short-petioluled or subsessile, more or less crenate, 

 short and obtusely acuminate or rarely rounded at the apex, 

 cuneate and equilateral or inequilateral at the base, dull or some- 

 what lustrous above, paler and the venation more prominent 

 beneath ; inflorescence terminal, paniculate-corymbose ; staminate 



