Part 2, 1910] MALPIGHIACEAE 147 



half as long as the sepal-body or less; larger petals 5-7 mm. long; cleistogamous flowers 

 sessile ; nutlets usually solitary, 4.5-5 mm. long, with a sharp uneven crest and swollen 

 tuberculate-wrinkled sides, minutely pubescent. 



Type locality : Rio Grande and Rio Seco, Texas. 

 Distribution : Southern Texas and adjacent Mexico. 



2. Aspicarpa lanata Rose, Contr. U. S. Nat. 

 Herb. 8; 49. 1903. 



Gaudichaudia mollis S. Wats. Proc. Am. Acad. 22: 402. 1887. Not G. mollis Benth. 1839. 



Stem and branches erect or somewhat spreading, mostly 2-7 dm. long, copiously stri- 

 gose ; leaf-blades oval, oblong, or ovate, mostly 2.5-6.5 cm. long, acute or abruptly pointed, 

 green and strigose above, white-lanate beneath, rounded or subcordate at the base, short- 

 petioled ; petaliferous flowers borne in clusters, which are sometimes aggregated at the ends 

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

 the sepal-body; larger petals 6-9 mm. long; cleistogamous flowers peduncled ; nutlets 

 6-6.5 mm. long, with a sharp median crest and tuberculate lateral angles, the faces tuber- 

 culate-wrinkled, glabrous. 



Type locality : Near Guadalajara, Jalisco. 

 Distribution : Durango and Jalisco. 

 Illustration : Contr. U. S. Nat. Herb. 8 : Jig. 11. 



3. Aspicarpa humilis (Benth.) A. Juss. Arch. Mus. 

 Paris 3 : 597. 1844. 



Gaudichaudia humilis Benth. PI. Hartw. 6. 1839. 



Aspicarpa Hartwegiana A. Juss. Ann. Sci. Nat. II. 13 : 253. 1840. 



Aspicarpa Hartwegi A. Juss.; Benth. PI. Hartw. 99. 1842. 



Stem and branches spreading or decumbent, mostly 1-4 dm. long, strigillose ; leaf- 

 blades ovate or oblong-ovate, or narrowly ovate near the tips of the branches or broadly 

 ovate near the base of the plant, mostly 1-2.5 cm. long, obtuse or acute, sparingly strigil- 

 lose on both sides, bright -green above, pale-green beneath, truncate or subcordate at the 

 base ; petaliferous flowers borne mostly in terminal clusters ; sepals ovate, 2.5-3 mm. long, 

 the glands about one half as long as the sepal-body; larger petals 5-6.5 mm. long; cleis- 

 togamous flowers short-peduncled ; nutlets 4.5-5 mm. long, the median ridge rather blunt, 

 the lateral angles minutely tuberculate-crested, the faces uneven, finely-pubescent. 



Type locality : Not given [Aguascalientes, Mexico] . 



Distribution : Southern Texas, Arizona, and northern Mexico. 



Illustrations : Arch. Mus. Paris 3: pi. 21, f. 35 ; E. & P. Nat. Pfl. 3* : 50,/. 40 J. 



4. Aspicarpa longipes A. Gray, PI. Wright. 1 : 37. 1852. 

 Stem and branches spreading or widely decumbent, mostly 1 m. long or less, strigillose ; 

 leaf-blades ovate, oblong-ovate, or oval, 1-4.5 cm. long, rounded or abruptly pointed at the 

 apex, bright green above, pale-green beneath, with scattered hairs on both sides, cordate or 

 subcordate at the base, short-petioled ; petaliferous flowers mostly clustered at the ends of 

 the branches ; sepals ovate, often broadly so, 3.5—1.5 mm. long, the glands about one half 

 as long as the sepal-body ; larger petals 6-8 mm. long ; cleistogamous flowers long- 

 peduncled ; nutlets 4-5 mm. long, the median crest sharp, nearly even, the lateral angles 

 narrowly and unevenly margined, the faces faintly wrinkled. 



Type locality : Between Texas and El Paso. [Western Texas.] 

 Distribution : Texas to Arizona and northern Mexico. 



5. Aspicarpa hirtella Rich. Mem. Mus. Paris 2 : 399. 1815. 



Aspicarpa urens Lagasca, Gen. Sp. PI. Nov. 1. 1816. 



Acosmus pruriens Desv.; Desf. Cat. Hort. Paris, ed. 3. 233. 1829. 



Stem and branches decumbent or reclining, mostly 1 m. long or less, hirsute; leaf- 

 blades ovate to oblong-ovate, 1.5-3.5 cm. long, acute or acutish, bright-green, but paler 

 beneath than above, with scattered hairs on both surfaces, or glabrate above, subcordate or 



