Britton : Studies of West Indian plants 351 



1 8. Comocladia Dodonaea (L.) 



Ilex Dodonaea L., Sp. PI. 125. 1753 . 



Comocladia tricuspidata Lam. Mem. Acad. Sci. Paris 1784: 



347- I787- . 



Comocladia ilicifolia Sw. Prodr. 17. 1788. 



Type locality: "America meridionalis." 



Plumier's plate 118, f. 1, identifies this species beyond doubt. 



Distribution: Santo Domingo (according to Engler); Porto 

 Rico, at low elevations in dry districts; Culebra; St. Thomas; 

 St. Croix; Montserrat ; Antigua; Guadeloupe; Mustique Island, 

 Grenadines. 



Note. — This species is the monotype of the genus Dodonaea 

 (Plum.) Adans. 1763. 



13. THE GENUS VIBURNUM IN JAMAICA 



1. Viburnum villosum. Sw. Prodr. 54. 1788 

 Hillsides and woodlands in moist and wet districts, at middle 

 and higher altitudes, ascending to 2300 meters in the Blue Moun- 

 tains. 



The species apparently consists of numerous races, differing 

 in the amount of stellate pubescence, in the shape of the fruit, 

 and in the length of the stamens. Very densely tomentose bushes 

 grow in proximity to slightly pubescent ones about Cinchona. 



2. Viburnum arboreum sp. nov. 



A tree, 15 m. high, with a straight trunk and spreading 

 branches. Leaves chartaceous, entire, oval-elliptic, dull green, 

 glabrous or sparingly stellate-pubescent above, loosely stellate- 

 pubescent beneath, 8-12 cm. long, 5-6.5 cm. wide, short-acumin- 

 ate at the apex, unequally narrowed or obtuse at the base, the 

 veins about 6 on each side of the midvein, the stout petioles stel- 

 late-pubescent, 1-2 cm. long, inflorescence stellate-pubescent, 

 8-12 cm. broad; fruiting pedicels 3 mm. long or less; fruit oblong, 

 9-10 mm. long and 3 mm. thick when dry, narrowed at both ends, 

 crowned by the ovate acute ciliate calyx-lobes and tipped by 

 the base of the style. 



Wooded rocky hill, Tyre, Cockpit Country {Britton, Sept. 

 13-18, 1906, no. 553, type; Harris 9475). Harris 9403 from the 

 same region, a shrub with white flowers, is probably this species. 



