Part 2, 1910] MALPIGHIACEAE 127 



cent, with a median wing-like keel, the wings finely pubescent, the upper ones broadly 



oblong, oblique at the apex, the lower wings much shorter than the upper ones. 



Type locality : Near Acapulco, Guerrero. 



Distribution : Southern Mexico, Central America, and Colombia. 



8. Tetrapteris Schiedeana Schlecht. & Cham. Linnaea 5: 218. 1830. 



Malpighia dasycarpa Donn. Smith, Bot. Gaz. 24: 390. 1897. 



HeteropUris yucatanensis Millsp. Field Columb. Mus. Publ. Bot. 1 : 369. 1898. 



Leaf-blades oblong or elliptic to ovate or lanceolate, 3-9 cm. long, acute or somewhat 

 acuminate, bright-green above, slightly paler beneath, pubescent about the margins and 

 veins beneath, when young, glabrous or nearly so beneath, short-petioled, the petiolar 

 glands mostly obsolete ; inflorescence-branches copiously fine-pubescent, at least during 

 anthesis; sepals oblong to ovate, 3-4 mm. long, the glands often nearly as long as the 

 sepal-body ; petals yellow, the larger ones 5-8 mm. long, the blades oblong or nearly so, 

 sagittate at the base, entire or crenulate ; free portions of the filaments lanceolate, mostly 

 shorter than the tube ; samaras 1.5-3 cm. long, the body finely pubescent, with a prominent 

 median wing-like keel and ridges or keels on either side, the wings oblong to oblong- 

 cuneate, oblique at the apex, the lower wings somewhat shorter than the upper. 



Type locality : Near Jalapa, Veracruz. 

 Distribution : Central Mexico to Costa Rica. 



9. Tetrapteris Donnell-Smithii Small, sp. now 



Malpighia dasycarpa Donn. Smith, Bot. Gaz. 24 : 390, in part. 1897. 



Leaf-blades oblong, elliptic, or ovate, 7-16 cm. long, short-acuminate, or abruptly 

 pointed at the apex, bright-green and somewhat shining above, paler beneath than above, 

 glabrous at least at maturity, abruptly narrowed or rounded at the base, short-petioled, the 

 petiolar glands at the base of the blade, or obsolete ; inflorescence-branches copiously ap- 

 pressed-pubescent ; sepals ovate or orbicular-ovate, 5-6 mm. long, the glands slightly shorter 

 than the sepal-body ; petals yellow, the larger ones 11-13 mm. long, the blades suborbicular, 

 crenulate-dentate, truncate at the base ; free portions of the filaments triangular or tri- 

 angular-lanceolate, shorter than the tube; samaras not seen. 



Collected at San Juan del Norte, Nicaragua, June, 1895. H. Pitlier 9653 (herb. John Donnell 

 Smith). 



Distribution : Nicaragua. 



10. Tetrapteris reticulata Small, sp. now 

 Leaf-blades lanceolate to oblong-lanceolate, 7-12 cm. long, somewhat acuminate, gla- 

 brous or nearly so, dull on both sides, paler beneath than above, finely reticulate, especially 

 beneath, acute or obtuse at the base, short-petioled, the petiolar glands obsolete ; inflo- 

 rescence-branches finely and rather sparingly pubescent ; sepals oblong, about 3 mm. long, 

 the glands nearly as long as the sepal-body ; petals yellow, the larger ones 5-6 mm. long, 

 the blades oblong to oval, denticulate; free portions of the filaments subulate, longer than 

 the tube ; samaras 2.5-3 cm. long, the body sparingly pubescent, with a wing-like some- 

 what crested keel, the wings glabrous or nearly so, the upper ones linear to spatulate, the 

 lower wings slightly smaller than the upper. 



Type collected in the vicinity of Cana, Panama, Williams 763 (herb. N. Y. Bot. Gard.). 

 Distribution : Known only from the type locality. 



Doubtful species 



Tetrapteris aeoua/is Sauv. Anal. Acad. Ci. Habana 5: 286. 1868. 



Tetrapteris argentea Bertol. Nov. Comm. Bonon. 4: 419. 1840. 



Tetrapteris eriocarpa Bertol. Nov. Comm. Bonon. 4 : 419. 1840. 



Tetrapteris Cotoneaster A. Juss. Ann. Sci. Nat. II. 13: 264. 1840. 



Galphimia mollis H.B.K. Nov. Gen. & Sp. 5 : 173. 1822. Not Tetrapteris mollis 

 Griseb. 1839. 



Tetrapteris Seemanni Triana & Planch. Ann. Sci. Nat. IV. 18 : 335. 1862. 



Banisteria ferruginea Seem. Bot. Voy. Herald 92. 1853. Not B. ferruginea Cav. 

 1790. 



