106 WooTON AND Standlev : Plants from New Mexico 



The difference may be due simply to environmental conditions, 

 chief of which is a better water supply. Type : collected on Ani- 

 mas Creek, in the Black Range, Sierra Co., New Mexico, July 

 I3> 1904* Metcalfe 11 2j, altitude about 1500 m. 



Other specimens seen : Organ Mts., 1897, ^oofon 120 \ Doiia 



Ana Mts.. A 



Metcalfi 



Ditaxis cyanopliylla sp. nov. 



Stems numerous, erect, herbaceous, from a perennial root, 30 

 to 40 cm. high, glabrous and shining, grooved ; leaves alternate, 

 sessile, 20 to 50 mm. long, 5 to 30 mm. wide, the lowermost 

 broadly elliptic to ovate, gradually narrowing towards the upper 

 part of the stem, where they are narrowly lanceolate, glabrous and 

 smooth, or with a few scattering hairs along the margins, entire, 

 obtuse or acute, prominently veined, drying bluish in some speci- 

 mens, staining water red when allowed to soak ; flowers in axillary 

 3- to 6-flowered racemes, slightly exceeding the leaves ; bracts 

 small, tipped with a small bunch of hairs ; the two kinds of flowers 

 very similar, the sepals in both kinds lanceolate, acuminate, 6 to 7 

 mm. long, persistent and somewhat enlarged in fruit, appressed- 

 villous within ; petals of the staminate flowers spatulate, light- 

 yellow with reddish veins, about as long as the sepals ; petals of 

 the pistillate flowers oblanceolate, acute, about two thirds the 

 length of the sepals, persistent in fruit ; glands very small, de- 

 pressed-globose, glabrous ; stamens 8 to 10, monadelphous ; style 

 3-parted, with expanded crispate stigmas ; ovary appressed -villous ; 

 fruit generally 3-lobed, sometimes 2'Seeded by abortion of one or 

 more ovules ; seeds spheroidal, smooth, blotched with blue and red. 



This species is related to D, inercurialana (Nutt.) Coult, from 



which it maybe separated by the absence of pubescence on nearly 



all parts of the plants, the shorter inflorescence, the larger petals, 



the generally broader leaves, and the slightly smaller size of the 



plant. Type, Metcalfe's gzg from Kingston, Sierra Co., New 



Mexico, May 25, 1904, growing in dry gravel; altitude about 



2100 m. 



Other specimens seen : 



New Mexico : Western Socorro Co., south of Rito Ouemado, 

 1904, Wooton 2SgOy growing at the lower edge of the pifion zone 



on sandhills. 



Arizona : Near Coyote Springs, southeast of Sprlngerville, in 

 the pifion zone, June 23, 1892, Wooton. 



