STANDLEY TREES AND SHEUBS OF MEXICO 1391 



16. Psychotria papantlensis (Oerst.) Hemsl. Biol. Centr. Amer. Bot. 2: 50. 

 1881. 



Mapouria salicifolia Oerst. Ainer. Centr. 17. pi. I4, f- 2. 1863. 



IMapouria stipulata Oerst. Amer. Centr. 17. pi. I4, f- 7. 1863. 



"^Mapouria miradorensis Oerst. Amer. Centr. 17. pi. I4, f- 9. 1863. 



Psychotria salicifolia Hemsl. Biol. Centr. Amer. Bot. 2: 51. 1881. Not P. 

 salicifolia H. B. K. 1818. 



San Luis Potosi and Veracruz; Yucatan (?); type from Papantla, Veracruz. 



Small shrub, nearly glabrous; leaves short-petiolate, 5 to 17 cm. long, acumi- 

 nate, attenuate at base; cymes mostly sessile or nearly so, dense or in age open, 

 the flowers white. "Cancerillo" (Yucatdn), "pochitoco" (Veracruz). 



17. Psychotria oaxacana Standi., sp. nov. 



Type from Santo Domingo, Oaxaca, altitude 480 meters (Nelson 2688; U. S. 

 Nat. Herb. no. 574444). 



Branches slender, glabrous; leaves short-petiolate, lance-oblong or narrowly 

 eUiptic-oblong, 4 to 7 cm. long, 1 to 2 cm. wide, long-acuminate, acute or attenu- 

 ate at base, thin, glabrous, blackish when dry; cymes on long slender peduncles, 

 1 to 2 cm. wide, the flowers short-pedicellate, gla^brous; calyx lobes lance-subulate; 

 corolla 3 mm. long,, the lobes obtuse; anthers e.xserted. 



DOUBTFUL SPECIES. 



Psychotria biaristata Bartl.; DC. Prodr. 4: 513. 1830. Type from some- 

 where in Mexico; reported from Oaxaca. 



Psychotria limonensis laxinervia Loesener, Repert. Sp. Nov. Fedde 18: 

 361. 1922. Type from Palenque, Chiapas. The species was described from the 

 Atlantic coast of Costa Rica. 



Psychotria padifolia Willd.; Roem. & Schult. Syst. Veg. 5: 189. 1819. 

 Type from Jalapa, Veracruz. 



Psychotria scabriuscula Bartl.; DC. Prodr. 4: 513. 1830. Type from 

 Acapulco, Guerrero. 



Psychotria tomentosa (Oerst.) Hemsl. Biol. Centr. Amer. Bot. 2: 51. 1881. 

 Mapouria tomentosa Oerst. Amer. Centr. 17. pi. I4, /• 8. 1863. Type from 

 Papantla, Veracruz. 



39. EVEA Aubl. PI. Guian. 1 : 103. 1775. 



Shrubs or small trees; flowers in terminal heads, these subtended by large or 

 small, sessile, often connate bracts; calyx dentate, persistent; corolla funneLform 

 or salverform, the tube straight, the limb 4 or 5-lobate, the lobes valvate; fruit 

 drupaceous, containing 2 bony nutlets, these smooth or costate, 1-seeded. 



Plants hirsute 1. E. tomentosa. 



Plants glabrous or nearly so. 



Leaves petiolate; stipules bilobate, not setiferous 2. E. elata. 



Leaves sessile; stipules setiferous, not bilobate 3. E. chiapensis. 



1. Evea tomentosa (Aubl.) Standi. Contr. U. S. Nat. Herb. 18: 123. 1916. 



Tapogomea tomentosa Aubl. PL Guian. 1: 160. 1775. 



Cephaelis tomentosa Vahl, Eclog. Amer. 1: 19. 1796. 



Cephaelis hirsuta Mart. & Gal. Bull. Acad. Brux. 11': 135. 1844. 



Veracruz, Oaxaca, and Tabasco. Central and South America. 



Shrub, 1 to 4 meters high, hirsute throughout; leaves short-petiolate, eUiptic 

 to elliptic-oblong, 10 to 25 cm. long, acuminate, acute at base; heads long- 

 pedunculate, the bracts 3 to 6 cm. broad, bright red; corolla yellow, 

 57020—26—6 



