148 NORTH AMERICAN FLORA [Volume 25 



cordate at the base, short-petioled ; petaliferous flowers sparingly clustered at the ends of 

 the branches; sepals narrowly ovate, 3-3.5 mm. long, the glands about one half as long as 

 the sepal-body ; larger petals 9-10 mm. long ; cleistogamous flowers long-peduncled ; 

 nutlets 5-6 mm. long, the median ridge sharp, nearly even, the lateral angles unevenly 

 margined, the faces finely wrinkled. 



Type locality : Described from cultivated material of Mexican origin. 



Distribution : Mexico. 



Illustration : Mem. Mus. Paris 2 : pi. 13. 



15. LASIOCARPUS Liebm. Vidensk. Meddel. 1853: 90. 1854. 

 Shrubs with much-branched stems, the branches stiff. Leaves opposite ; blades mem- 

 branous, narrow, entire. Flowers borne in short congested racemes, the rachis short, the 

 bracts deciduous. Calyx glandless ; sepals 5, relatively narrow, persistent. Corolla white ; 

 petals 5, the blades relatively narrow, somewhat unequal, slightly longer than the calyx. 

 Stamens 10, all anther-bearing ; filaments glabrous, narrow. Ovary 3-lobed. Styles 3, dis- 

 tinct, slightly unequal. Stigmas 2-lobed. Fruit 3-lobed, densely pubescent and bristly. 



Type species, Lasiocarpus salkifolius Liebm. 



1. Lasiocarpus salkifolius Ljebm. Vidensk. Meddel. 1853: 91. 1854. 



Plants 1-2 in. tall, the young twigs gray-silky; leaf-blades oblong-elliptic to linear- 

 oblong, 2.5-4.5 cm. long, obtuse, silky on both sides, but more densely so beneath, short- 

 petioled ; raceme-rachis 0.5-2 cm. long ; pedicels slender ; sepals linear to narrowly oblong, 

 1.5-2 mm. long; petals spatulate, 2-2.5 mm. long, short-clawed; fruits globose or ovoid- 

 globose, 4-5 mm. in diameter. 



Type locality : Along the Rio de las Vueltas, Oaxaca. 

 Distribution : Oaxaca. 



16. ECHINOPTERYS A. Juss. Arch. Mus. Paris 3 : 342. 1844. 



Coelostylis Kuntze, Rev. Gen. 1 : 87. 1891. 



Shrubs with widely branched stems, the branches pliable. Leaves alternate, or some- 

 times almost opposite ; blades thickish, broad, entire. Flowers borne in terminal, open, 

 elongate panicles, the rachis slender, the bracts deciduous. Calyx glandless ; sepals 5, 

 relatively broad, persistent. Corolla yellow ; petals 5, very much longer than the calyx, 

 the blades very broad, decidedly unequal, toothed. Stamens 10, all anther-bearing ; filaments 

 pubescent, broad. Ovary 3-lobed. Styles united. Stigma 3-lobed. Fruit 3-lobed, densely 

 pubescent and covered with somewhat plumose hair-like bristles which are hooked at the 

 apex. 



Type species, Echinopterys Lappula A. Juss. 



1. Echinopterys eglandulosa (A. Juss.) Small. 



Bunchosia eglandulosa A. Juss. Ann. Sci. Nat. II. 13: 325. 1840. 

 Echinopterys Lappula A. Juss. Arch. Mus. Paris 3 : 342. 1844. 

 Coelostylis eglandulosa Kuntze, Rev. Gen. 1 : 88. 1891. 



Stem and branches pubescent when young ; leaf-blades ovate or ovate-lanceolate, vary- 

 ing to oblong, 1-3 cm. long, acute, abruptly pointed, or somewdiat acuminate, sparingly 

 pubescent when young, short-petioled ; panicles many-flowered, the rachis and the branches 

 pubescent ; sepals oblong to ovate-oblong, 3-4 mm. long, obtuse ; corolla yellow, the petals 

 6-10 mm. long, the larger ones with very broad cordate blades ; mature carpels 2.5-3 mm. 

 wide, somewhat longer than wide, pubescent and prickly. 



Type locality : Mexico. 



Distribution : Mexico. 



Illustrations : Arch. Mus. Paris 3 : pi. 9,f. 11 ; E. & P. Nat. Pfl. 3 4 : 57./. 41, E, E, G. 



17. HENLEOPHYTUM Karst. Fl. Colomb. 1 : 158. 1861. 



Henlea Griseb. Abh. Ges. Wiss. G6tt. 9 : 37. 1860. Not Henlea Karst. 1858. 



Vines with reclining or somewhat twining branches. Leaves opposite ; blades leathery, 

 broad, entire. Flowers borne in axillary, open, elongate, raceme-like panicles, the rachis 



