Part 2, 1910] MALPIGHIACEAE 131 



8. Gaudichaudia confertiflora A. Juss. Ann. Sci. 

 Nat. II. 13: 252. 1840. 

 Gaudichaudia congestiflora A. Juss. Arch. Mus. Paris 3 : 590. 1844. 



Leaf-blades ovate to oblong, 2-5 cm. long, mucronate, green and softly pubescent 

 above, pale and densely pubescent beneath, rounded and auriculate-cordate at the base, 

 short-petioled ; sepals with linear glands ; petals yellow, the larger ones 6-7 mm. long, 

 the blades denticulate ; samaras V-shaped, cuneate, 10-14 mm. long, the upper lobes ovate. 



Type locality : Mexico. 



Distribution : Mexico. 



Illustrations : Arch. Mus. Paris 3 : pi. 21; E. & P. Nat. Pfl. 3* : 46./. 38, D & S. 



Doubtful species 

 Gaudichaudia mollis Benth. PI. Hartw. 6. 1839. 

 Gaudichaudia Enrico-Martinezii Barcena, Anal. Minist. Fomento Mes. 3 : 149. pi. 187S. 



8. ROSANTHUS Small, gen. nov. 



Upright partially woody plants, simple, or branched at the base and in the inflorescence. 

 Leaves opposite or whorled in 3's ; blades thickish, entire, pubescent, short-petioled. Calyx 

 with S, or sometimes 7 or 9 glands ; sepals 5, relatively narrow, persistent, the glands attached 

 to the sepal-bod}- by their bases. Corolla yellow ; petals 5, the blades relatively narrow, 

 usually oblong or oval, lacerate-denticulate. Stamens 5, all of them anther-bearing; fila- 

 ments subulate, slightly united at the base ; anthers globular. Ovary 3-lobed. Styles 3, 

 distinct, nearly equal. Samaras 3 together, each with united lateral wings and a dorsal ridge. 



Type species, Gaudichaudia subverticillata Rose. 



1. Rosanthus subverticillatus (Rose) Small. 



IBanisieria brevipes Moc. & Sesse ; DC. Prodr. 1 : 591. 1824. 

 ? Gaudichaudia bret'ipes A. Juss. Arch. Mus. Paris 3: 597. 1844. 

 Gaudichaudia subverticillata Rose, Contr. U. S. Nat. Herb. 8 : 49. 1903. 



Plants 5-8 dm. tall, the stem simple or branched, densely and rather coarsely pubes- 

 cent with partially appressed and partially spreading hairs ; leaves spreading, the blades 

 oblong or ovate-oblong and 4-10 cm. long, or obovate near the base of the plant and 

 smaller than the upper ones, obtuse or abruptly pointed, paler beneath than above, rather 

 coarsely pubescent and about equally pubescent on both sides, rounded or subcordate at the 

 base, very short-petioled ; flower-clusters rather contracted during anthesis ; sepals lanceo- 

 late, 3-^1 mm. long, the glands much less than one half the length of the sepal-body; petals 

 yellow, the larger ones 7-11 mm. long, the blades oblong or oval, lacerate-denticulate; 

 samaras obovate, 11-13 mm. long, acute at the base, emarginate at the apex, finely 

 pubescent. 



Ty-pe locality- : Between Huejuquilla and Mesquitec, Jalisco. 

 Distribution : Jalisco. 



9. BANISTERIOPSIS C. B. Robinson, gen. nov. 



Climbing or reclining shrubs, with much-branched stems. Leaves opposite ; blades 

 commonly leathery, glabrous or copiously pubescent, sometimes reticulate, entire, petioled. 

 Calyx with 8 or 10 glands, or glandless ; sepals 5, broad, somewhat unequal, persistent. 

 Corolla pink, purplish, or yellow, or rarely white; petals 5, the blades broad, denticulate to 

 lacerate. Stamens 10 ; filaments decidedly unequal in length ; anthers often with very 

 large connectives. Ovary 3-lobed. Styles 3, terminal. Stigmas terminal, covering the 

 clavate or truncate end of the style. Samaras 3 together, or fewer, each with an ascending 

 or spreading dorsal wing, the wing with a marginal thickening along the ventral edge. 



Type species, Banisteria brachiata L. 



Ultimate flower-clusters raceme-like or corymb-like. 

 Samara-body crested on the side. 



Inflorescence longer than the leaves ; crests of the samara-body over 

 0.5 mm. high. 

 Leaf -blades inconspicuously pubescent beneath ; larger petals 

 with suborbicular blades. 1. B. cornt folia. 



