1384 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 



4. Chomelia protracta (Bartl.) Standi. 



Gucttarda protracta Bartl.; DC. Prodr. 4: 457. 1830. 



Antirrhea protracta Hemsl. Biol. Centr. Amer. Bot. 2: 42. 1881. 



Guerrero to Oaxaca. Guatemala and Honduras. 



Shrub; leaves short-petiolate, oblong-lanceolate or oblong-elliptic, 7 to 15 cm. 

 long, long-acuminate, acute at base; cymes few or many-flowered; corolla serice- 

 ous, the tube 7 to 10 mm. long; fruit oval, 4 to 5 mm. long. 



30. GUETTABDA L. Sp. PI. 991. 1753. 

 Shrubs or trees; flowers small, perfect, in axillary, bifurcate or congested 

 cymes, sometimes solitary, usually secund; calyx truncate or dentate; corolla 

 funnelform or salverform, the tube elongate, the lobes obtuse, imbricate; fruit 

 drupaceous, the flesh very thin, the stone hard, 4 to 9-celled, the cells 1-seeded. 

 Leaves cordate or subcordata at base, mostly 10 to 14 cm. wide. 1. Q. ssleriana. 

 Leaves acute to rounded at base, less than 10 cm. wide. 



Pubescence of the lower surface of the leaves of spreading hairs 2. Q. fllipes. 



Pubescence of the lower surface of the leaves of appre.ssed hairs. 



Leaves loosely tomentose on the upper surface when young. 3. G. galeottii. 

 Leaves glabrous or nearly so on the upper surface. 



Stipules obtuse; corolla 6 to 8 mm. long 4. G. dichotoma. 



Stipules acuminate; corolla 9 to 12 mm. long 5. Q. elliptic a. 



1. Guettarda seleriana (Loesener) Standi. 



Guettarda scabra seleriana Loesener, Repert. Sp. Nov. Fedde 18: 361. 1922. 



Type from Chichen ItzA, Yucatdn. 



Shrub; leaves short-petiolate, rounded or rounded-elliptic, 12 to 16 cm. long, 

 obtuse or acutish, green and glabrate above, beneath paler, in age hirtellous- 

 puberulent, when young sericeous-strigose; cymes many-flowered, on elongate 

 peduncles; corolla tube about 2 cm. long, densely retrorse-sericeous. 



2. Guettarda filipes Standi. Contr. U. S. Nat. Herb. 20: 210. 1919. 

 Sinaloa and Durango; type from Huasemote, Durango. 



Shrub, 2 to 2.5 meters high; leaves short-petiolate, ovate to elliptic-oblong, 3 

 to 5.5 cm. long, obtuse or short-acuminate; cymes few-flowered, on long slender 

 peduncles; corolla sericeous, the tube 6 to 7 mm. long. "Negrito" (Sinaloa). 



3. Guettarda galeottii Standi., sp. nov. 



Type from Pinotepa, Oaxaca (Galeotti 2576; U. S. Nat. Herb. no. 572993). 



Branchlets densely pilose-sericeous; stipules triangular-lanceolate, 5 to 7 

 mm. long, attenuate-acuminate; leaves opposite, the petioles 2 to 4 mm. long, 

 the blades ovate or oval-ovate, 3 to 5 cm. long, 1.7 to 2.7 cm. wide, rounded at 

 base, acutely acuminate at apex, loosely and thinly tomentose above when 

 young, becoming glabrate, paler beneath, appressed-pilose, especially along 

 the nerves; cymes dense, many-flowered, the peduncles 1 to 1.5 cm. long, densely 

 pilose, the flowers sessile, the bractlets minute; hypanthium densely pilose, the 

 cah'x very sparsely short-pilose, 0.5 mm. long, truncate or obscurely lobate; 

 corolla sericeous outside, the tube slender, 7 mm. long, the 4 lobes rounded, about 

 1 mm. long. 



4. Guettarda dichotoma Mart. & Gal. Bull. Acad. Brux. 11': 233. 1844. 

 Type from Consoquitla, Veracruz. 



Leaves short-petiolate, ovate, 5 cm. long, acutish, glabrous above; corolla 

 sericeous. 



5. Guettarda elliptica Swartz, Prodr. Veg. Ind. Occ. 59. 1788. 

 ^Guettarda tetrandra Sesse & Moc. Fl. Mex. ed. 2. 218. 1894. 

 Guettarda insularis T. S. Brandeg. Univ. Calif. Publ. Bot. 10: 416. 1924. 



