1516 CONTEIBUTIOXS FROM THE NATIONAL HERBARIUM 



13. Nocca liebmannii (Schultz Bip.) Robinson, Proc. Amer. Acad. 36: 470. 

 1901. 



Lagascea liebmannii Schultz Bip.; Klatt, Leopoldina 20: 91. 1884. 

 Known only from the type locality, Pochutla, Oaxaca. 



Suffruticose; leaves elliptic, 5 cm. long, soft-pubescent beneath; proper invo- 

 lucres finely villous. (Description compiled.) 



14. Nocca palmeri Robinson, Proc. Amer. Acad. 36: 471. 1901. 

 Lagascea palmeri Robinson, Proc. Amer. Acad. 43: 38. 1907. 

 Known only from the type locality, Colima. 



Slender shrub; leaves ovate, 1.5 to 4 cm. long, scabrous on both sides, sub- 

 entire; proper involucres sparsely villous chiefly at base; corollas 6 mm. long> 

 apparently white. 



DOUBTFUL SPECIES. 



Nocca robinsonii (A. Nels.) Blake. 



"Nocca n. sp. (?]" Robinson, Proc. Amer. Acad. 36: 408. 1901. 



Calhounia robinsonii A. Nels. Univ. Wyo. Publ. Bot. 1: 59. 1924. 



Mexico, without definite locality. 



Pubescence of the branches fine, spreading, the hairs i)artly glandular, all of 

 equal length; leaves elliptic, obtuse or short-acuminate, scabrous, gray-pubescent 

 beneath, remotely denticulate, short-petioled. (Description compiled.) 



36. COULTERELLA Vasey & Rose, Contr. U. S. Nat. Herb. 1: 71. pi. 1. 1890. 

 1. Coulterella capitata Vasey & Rose, Contr. U. S. Nat. Herb. 1: 71. pi. 1. 

 1890. 



Vicinity of La Paz, Baja California. 



Much-branched glabrous shrub, about 1.3 meters high, lemon-scented; leaves 

 opposite or alternate, rhombic-ovate to elliptic-oblong, 2.5 cm. long or less, 

 sessile and clasping, coarsely few-toothed to entire, wevy fleshy; proper involucres 

 gamophyllous, at maturity obovoid, 3-winged and corky, shortl}' 3-toothed at 

 the contracted apex, 7 to 10 mm. long, glomerate at tips of branches, subtended 

 by minute bracts, 1-flowered (very rarely 2-flowered) ; corollas j-ellow, the throat 

 very short, the teeth lance-linear, 3-veined, exceeding the tube and throat; 

 anthers sagittate-mucronate; styles branches slender, with very short obscure 

 appendages, merely papillose outside; achenes columnar, multistriate, glabrous, 

 3.8 mm. long, epappose, crowned with a detergible cup left by the base of the 

 corolla. 

 37. DESMANTHODIUM Benth. in Hook. Icon. PI. 12: 14. pi. 1116. 1873. 



Shrubs or herbs; leaves opposite, thickish, serrate; heads few-flowered, small, 

 numerous, glomerulate in cymose panicles; phyllaries few, subscarious; pistillate 

 flowers 1 to 3, loosely inclosed in sac-shaped membranaceous phyllaries with 

 short tubular apex, their corollas tubular-cylindric, subtruncate, white; paleae of 

 receptacle few; hermaphrodite flowers 4 to 6, regular, 5-toothed, sterile; achenes 

 inclosed in the sac-shaped phyllaries, epappose. 

 Stem densely villous-tomentose, glabrescent; leaves broadly ovate, 5 to 7 cm. 



wide 1. D. tomentosum. 



Stem glabrous or puberulous in lines; leaves elUptic to obovate, 4.5 cm. wide 

 or less. 



Leaves short-petioled 2. D. fruticosum. 



Leaves connate-perfoUate 3. D. perfoliatum. 



1. Desmanthodium tomentosum T. S. Brandeg. Univ. Cahf. Publ. Bot. 6; 

 73. 1914. 



Known only from the type locality, Cerro del Boqueron, Chiapas. 



