136 NORTH AMERICAN FLORA [Volume 25 



7. Banisteria simulans Small, sp. nov. 



Leaf-blades ovate to oblong-ovate, 3-6 cm. long, or more, acute or apiculate, dull, 

 finely pubescent and appressed veiny above, rather copiously pubescent and prominently 

 veined beneath, rounded at the base, short-petioled ; inflorescence narrowly pyramidal ; 

 sepals oblong or nearly so, 3-3.5 mm. long, the glands one half the length of the sepal- 

 body or less ; petals not seen; samaras 2-2.5 cm. long, the wing thin, minutely pubes- 

 cent, broadly dilated toward the apex, not auricled at the base, the bod}- with a double crown . 



Type collected near Los Canos, San Luis Potosi, Mexico, October 15-21, 1902, Edward Palmet 

 25S (herb. N. Y. Bot. Gard.). 



Distribution : Known only from the type locality. 



8. Banisteria retusa (Donn. Smith) C. B. Robinson. 



Heleropteris retusa. Donn. Smith, Bot. Gaz. 16 : 2. 1891. 



Leaf-blades broadly obovate to oval, 2.5^.5 cm. long, rounded or retuse at the apex 

 and usually prominently mucronate, dark-green and often sparingly pubescent above, pale- 

 green, somewhat veiny and usually pubescent beneath, obtuse or rounded at the base, 

 short-petioled; inflorescence, or its branches, elongate; sepals ovate, 2.5-3 mm. long, the 

 glands about one half the length of the sepal-body, or much less ; larger petals 5-5.5 mm. 

 long ; samaras 2-2.5 cm. long, the wing broad at the base, somewhat narrowed to the rather 

 broad apex, sparingly pubescent, the body veiny. 



Type locality : Escuintla, Guatemala. 

 Distribution : Guatemala. 



9. Banisteria purpurea L. Sp. PI. 427. 1753. 



Banisteria pari'i folia Vent. Choix pi. 51. 1803. 

 Heleropteris purpurea H.B.K. Nov. Gen. & Sp. 5: 164. 1822. 

 Heleropteris parvifotia DC. Prodr. 1 : 591. 1824. 

 IMalpighia elliptica Desv.; Hamilt. Prodr. 40. 1825. 



Leaf-blades oblong, oval, suborbicular, or ovate, 1.5-5.5 cm. long, rounded or retuse, 

 and sometimes mucronulate at the apex, light-green and usually somewhat shining above, 

 glabrous, at least at maturity pale-green or glaucous and dull beneath, short-petioled; in- 

 florescence short, corymbose, the branches sparingly pubescent or glabrous ; sepals ovate to 

 oblong, 2.5-3 mm. long, the glands over one half the length of the sepal-body ; larger petals 

 5-5.5 mm. long; samaras 2-3 cm. long, the wing slightly dilated upward, sparingly pubes- 

 cent, the body striate-veined, crownless. 



Type locality : Tropical America. 



Distribution: West Indies and northern South America. 



Illustrations: Cav. Diss. pi. 246 ; Vent. Choix pi. 51. 



10. Banisteria apiculata (Miq.) C. B. Robinson. 



Heleropteris macroslachya A. Juss. Ann. Sci. Nat. II. 13 : 275. 1840. Not Banisteria macros tachia 



Veil. 1825. 

 Heleropteris apiculata Miq. Stirp. Surin. 81. 1850. 



Leaf-blades oblong, varying to ovate or obovate, mostly 9-20 cm. long, abruptly short- 

 pointed or short-acuminate, becoming glabrous or nearly so above, except about the veins, 

 lustrous-pubescent beneath, abruptly narrowed, obtuse or subcordate at the base, short- 

 petioled ; sepals ovate, 3.5-5 mm. long, the glands large, much more than one half the 

 length of the sepal-body; larger petals 5-7 mm. long; samaras not seen. 



Type locality : Surinam. 



Distribution : Lesser Antilles and northern South America. 



11. Banisteria obovata Small, sp. nov. 



Leaf-blades obovate, sometimes rather narrowly so, 7-16 cm. long, mucronate, rounded 



or retuse at the apex, glabrous and smooth above, at least in age, lustrous-pubescent beneath, 



abruptly narrowed or rounded at the base, rather short-petioled ; sepals oblong, 2.5-3 mm. 



long, the glands small, scarcely one half as long as the sepal-body; petals not seen; samaras 



