340 Britton : Studies of West Indian plants 



The distinguishing characters of the three Jamaica species are 

 indicated by the following key : 



Pedicels as long as the calyx or longer; leaves brilliantly shining. I. C. elliptica. 

 Pedicels much shorter than the calyx, or scarcely at all developed; 

 leaves dull or faintly shining. 

 Leaves elliptic-lanceolate, narrowed at the base, the petioles 



about as long as the calyx. 2. C. subsessilis. 



Leaves ovate, subcordate at the base, petioles only half as long 



as the calyx. 3. C. subcordata. 



I. Cassipourea elliptica (Sw.) Poiret 

 On rocky wooded hills, Kempshot and vicinity {Britton 2307 

 and 24.23; Harris 10330, 10340); collected also in Jamaica 

 by Swartz and by Purdie. 



2. Cassipourea subsessilis sp. nov. 



A tree about 6 m. high with slender spreading branches. 

 Leaves elliptic-lanceolate, 6-9 cm. long, 3.5 cm. wide or less, 

 acuminate at the apex, narrowed at the base, entire-margined, dull 

 green on both sides, or faintly shining above, the midvein promi- 

 nent beneath, the petioles 4-7 mm. long ; flowers solitary in the 

 axils, nearly or quite sessile ; calyx campanulate, its tube 3 mm. 

 long, its lobes ovate to ovate-lanceolate, about as long as the tube; 

 ovary appressed-pubescent ; capsule subfusiform, appressed-pu- 

 bescent, about 1.3 mm. long, 2.5 mm. in diameter, surmounted by 

 the persistent appressed-pubescent style. 



On wooded hill near Dolphin Head, parish of Hanover, Ja- 

 maica, at about 400 meters altitude (Britton 2316 ; Harris 10307'). 



3. Cassipourea subcordata sp. nov. 



A tree 4 m. high, the twigs rather stout, the branches as- 

 cending. Leaves ovate, bright green on both sides but not 

 strongly shining, 5-7 cm. long, 3.5 cm. wide or less, short-acumi- 

 nate at the apex, subcordate at the base, the midvein prominent 

 beneath, the petioles rather stout, 2-3 mm. long ; flowers 1 or 2 

 together in the axils, very nearly sessile ; calyx tube obconic, 2. 5 

 mm. long, the lobes ovate, obtusish, about as long as the tube, 

 petals white, fimbriate. 



Along a brook, Troy, Jamaica {Britton 488, type) ; collected 

 also by Mr. Harris at the same place (no. 0466). 



