222 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



4. ALLIONIELLA Rydb. 



Low, much branched herb with weak, prostrate or asceudiug, viscid branches; 

 leaves opposite, petiolate; involucres loosely paniculate, rotate and enlarged at 

 maturity, 5-lobed; perianths 3 in each involucre, short-f unnelform ; stamens 3; fruit 

 ellipsoid, smooth or obscurely tuberculate, glabrous. 



KEY TO THE SPECIES. 



Stems pubescent throughout 1. A. oxyhaphoides. 



Stems glabrate below, slightly puberulent above la. A. oxybaphoides 



glabrata. 



1. Allioniella oxybaphoides (A. Gray) Rydb. Bull. Torrey Club 29: 687. 1902. 



Quamoclidion oxybaphoides A. Gray, Amer. Joum. Sci. II. 15: 320. 1853. 



Mirabilis oxybaphoides A. Gray in Torr. U. S. & Mex. Bound. Bot. 173. 1859. 



Type locality: East of El Paso, Texas. 



Range: Utah and Colorado to Arizona and western Texas. 



New Mexico: Near Pecos; Sierra Grande; Raton; Fort Wingate; Santa, Fe Creek; 

 Bear Mountain; Kingston; Organ Mountains; Gray. Dry hills. Upper Sonoran Zone. 



la. Allioniella oxybaphoides glabrata (Heimerl) Standley, Contr. U. S. Nat. 

 Herb. 12: 357. 1909. 



Mirabilis oxybaphoides glabrata Heimerl, Ann. Cons. Jard. Geneve 5: 180. 1901. 



Type locality: Capitan Mountains, New Mexico. Type collected by Earle 

 (no. 399). 



Range: With the type. 



New Mexico: Capitan Mountains; Gallinas Mountains. 



5. QUAMOCLIDION Choisy. 



Low, diffusely branched, perennial herb with glabrous petiolate ovate leaves; 

 involucre gamophylloxis, calyx-like; flowers large, purplish red, several in each 

 involucre; perianth with a thick, rather long tube and a wide spreading limb; stamens 

 5, exserted; fruit oblong, smooth, glabrous. 



1. Quamoclidion multifloi'um Torr.; A. Gray, Amer. Joum. Sci. II. 15: 321. 1853. 



Oxybaphus multifiorus Torr. Ann. Lye. N. Y. 3: 237. 1828. 



Mirabilis multijlora A. Gray in Torr. U. S. & Mex. Bound. Bot. 173. 1859. 



Type locality: "About the forks of the Platte," Colorado. 



Range: Colorado to Arizona and western Texas. 



New Mexico: Common throughout the State except in the extreme southwest 

 and southeast. Plains and low hills, in the Lower and Upper Sonoran zones. 



6. TRIPTEROCALYX Hook. 



Much branched annuals with fleshy lanceolate unequal petiolate leaA'^es; involucral 

 bracts 4 to 6, surrounding a head of numerous flowers; perianth showy, with a long 

 slender tube and rather broad limb, white to bright pink or greenish white; fruita htu'd 

 spindle-shaped body, completely surrounded by 2 to 4 broad thin reticulate-veined 

 wings. 



KEY TO THE SPECIES. 



Flowers 2 cm. long or less, greenish; peduncles shorter than the 



leaves 1. T. micranthus. 



Flowers more than 2 cm. long, pink or white; peduncles longer 

 than the leaves. 

 Perianth pink; fruit 20 to 28 mm. long; plants stout, with erect 



stems; bracts narrowly ovate 2. jT. cyclopteriis. 



Perianth white; fruit less than 20 mm. long; plants more 



slender, usually spreading; bracts narrowly lanceolate. . 3. T. wootoni. _ 



