Part 2, 1910] MALPIGHIACEAE 125 



Blades of the petals denticulate ; free portions of the filaments subulate. 

 Bracts acute or short-aeuruinate ; upper and lower wings of the 

 samara contiguous at the base. 

 Blades of the leaves and bracts acute or obtuse at the base, 



relatively long-petioled. 3. T.mexicana. 



Blades of the leaves and bracts coidate at the base, sessile or very 

 short-petioled. 4. T.Nelsoni, 



Bracts notched or mucronate ; upper and lower wings of the samara 

 separated at the base. 5. T. emarginata. 



Glands as long as the sepal-body or nearly so. 

 Glands broadly oval ; filaments glabrous. 



Lower wings of the samara much smaller than the upper. 



Petal-blades of an orbicular type, denticulate ; upper samara- 

 wings over 2 cm. long. 6. T. glabrifolia. 

 Petal-blades of an oblong type, undulate ; upper samara-wings 

 less than 1.5 cm. long. 7. T. acapulcensis. 

 Lower wings of the samara slightly smaller than the upper. 



Larger petals with blades of an oblong type , sagittate at the base ; 



sepals less than 4.5 mm. long. 8. T. Scliiedeana. 



Larger petals with blades of an orbicular type, not sagittate ; 

 sepals over 4.5 cm. long. 9. T. DonnellSmithii. 



Glands narrowly oblong ; filaments pubescent. 10. T. recticulata. 



1. Tetrapteris inaequalis Cav. Diss. 433. 1790. 



Banislera bracieata DC. Prodr. 1 : 590. 1824. 



Tetrapteris paniculate Bello, Anal. Soc. Esp. Hist. Nat. 10: 245. 1881. 



Leaf-blades ovate, oblong-ovate, or oblong, 5-16 cm. long, acute or short-acuminate, 

 glabrous or with scattered hairs beneath, especially when young, bright-green and some- 

 what shining above, dull and slightly paler beneath, rounded or cordate at the base, rather 

 short-petioled, the petiolar glands borne above the middle of the petiole, or obsolete ; inflo- 

 rescence-branches densely fine-pubescent during anthesis ; sepals ovate or oblong-ovate, 

 3-4 mm. long, the glands about one half the length of the sepal-body ; petals yellow, the 

 larger ones 6-7.5 mm. long, the blades ovate to suborbicular, entire, but often rather promi- 

 nently undulate ; free portions of the filaments triangular to lanceolate, shorter than the 

 tube ; samaras 3-4 cm. long, the body strigillose-puberulent, with a median ridge, the wings 

 pubescent, the upper wings oblong to oblong-spatulate, oblique at the apex, the lower 

 wings much smaller than the upper. 



Type locality : Santo Domingo. 



Distribution : Santo Domingo, Porto Rico and the Lesser Antilles. 



Illustration : Cav. Diss. pi. 260. 



2. Tetrapteris citrifolia (Sw.) Pers. Syn. PI. 1 : 508. 1805. 



Triopteris citrifoHa Sw. Prodr. 75. 1788. 

 Triopteris bifurca Gaertn. Fruct. 2 : 168. 1790. 



Leaf-blades lanceolate, oblong-lanceolate, ovate-lanceolate, or ovate, 5-17 cm. long, 

 acute or short-acuminate, glabrous or nearly so, more or less shining above, dull beneath, 

 rounded, subcordate, or cordate at the base, relatively long-petioled, the petiolar glands 

 obsolete ; inflorescence-branches densely fine-pubescent during anthesis ; sepals ovate or 

 oblong-ovate, 3.5-4 mm. long, the glands fully one half as long as the sepal-body ; petals 

 yellow, the larger ones 5-6 mm. long, the blades obovate to suborbicular, entire, sometimes 

 slightly undulate ; free portions of the filaments triangular to lanceolate, shorter than the 

 tube ; samaras 2.5-3 cm. long, the body strigillose-puberulent, with a median wing-like 

 keel, the wings minutely pubescent, the upper wings oblong or oblong-spatulate, oblique 

 at the apex, the lower wings much smaller than the upper. 



Type locality : Jamaica. 

 Distribution : Jamaica and Hispaniola. 

 Illustration : Gaertn. Fruct./'/. 116. 



3. Tetraptetris mexicana H. & A. Bot. Beech. Voy. 281. 1836. 

 Leaf-blades elliptic, elliptic-lanceolate, or narrowly ovate, 4-11 cm. long, acute or short- 

 acuminate, minutely pubescent, at least when young, slightly shining above, dull beneath, 

 acute or obtuse at the base, relatively long-petioled, the petiolar glands borne near the base 

 of the blade or obsolete ; inflorescence-branches somewhat floccose during anthesis ; sepals 



