48 Britton: Studies of West Indian plants — XI 



petioles 12 mm. long or less; calyx 10-11 mm. long, finely pu- 

 bescent; corolla red, 1.8 cm. long or more, pubescent. 



Farallones de Regino, Estribo Turquino, Oriente, 1600 m. alt. 

 {Leon iioio). 



Rondeletia naguensis Britton & Wilson, sp. nov. 



A shrub about 2 m. high, the young twigs and inflorescence 

 densely strigose. Leaves elliptic, subcoriaceous, 4-10 cm. long, 

 sparingly strigose on the veins beneath when young, soon 

 glabrous, the apex obtuse or acute, the base obtuse or narrowed, 

 the venation inconspicuous, the strigose petioles 6-12 mm. long; 

 flowers in peduncled heads, the peduncles 2-4 cm. long; bractlets 

 obovate, about 3 mm. long; calyx-lobes oblanceolate, 3.5-4 mm. 

 long, densely pubescent with appressed hairs; capsule subglobose, 

 5.5 mm. in diameter, appressed-pilose. 



Banks of a stream, Loma de Quintin, Nagua, Oriente {Leon 



10971). 



Rondeletia calophylla Standley, sp. nov. 



Branchlets slender, pilose-strigose; stipules deltoid-acuminate, 

 1.5 to 2.5 mm. long, erect, persistent; petioles stout, 2 mm. long, 

 strigillose; leaf blades ovate, sometimes broadly so, 2 to 3.5 cm. 

 long, 1 to 2.5 cm. wide, acute or sometimes obtuse, broadly round- 

 ed or subcordate at base, thick-coriaceous, dark green above, 

 lustrous, scaberulous or glabrate, the venation prominulous- 

 reticulate, much paler beneath and brownish, glabrate or 

 scaberulous along the nerves, the costa prominent, the lateral 

 nerves few and distant; inflorescence terminal on the main 

 branches and on leafy lateral twigs, few-flowered, lax, the 

 flowers pedicellate; calyx globose, densely whitish-strigillose; 

 calyx lobes 5, oblong or linear-oblong, 2 mm. long, obtuse, gla- 

 brate, suberect; corolla densely white-strigillose outside, the 

 tube 4 mm. long, the 5 lobes rounded, 2 mm. long; capsule 

 subglobose, 3-4 mm. broad, glabrate; seeds broadly winged. 



Type (in the U. S. National Herbarium) collected in the Sierra 

 Maestra, Oriente, July, 1922, {Leon 10741). 



In the key to the species of Rondeletia in the North American 

 Flora, this plant runs at once to the group Odoratae, but it is 

 not closely related to any of the species placed there, or to any 

 other Cuban species previously known to the writer. 



Guettarda cryptantha Standley, sp. nov. 



Shrub, the branches grayish, the branchlets slender, densely 

 pilose with subappressed fulvous hairs; stipules 8-10 mm. long, 



