WOOTON AND STANDLEY FLORA OF NEW MEXICO. 141 



Capsules not crested. 



Plants slender; pedicels 10 to 12 mm. long; perianth 



segments 4 to 5 mm. long, pale 10. A. helleri. 



Plants stout; pedicels 13 to 16 mm. long; perianth 



segments 6 to 7 mm. long, bright pink 11. A. nuttallii. 



Outer bulb coats scaly, not reticulate, the veins never separating 

 into fibers. 

 Bulbs without rootstocks; umbels erect; peiianth segments 

 acute or acuminate; stamens not exserted. 



Capsule and ovary not crested 4. A. scaposum. 



Capsule and ovary crested. 



Perianth segments oblong- lanceolate; plants low, 



10 to 12 cm.; bulb coats dark chestnut brown, b. A.higelovii. 

 Perianth segments ovate-lanceolate; plants taller, 



18 to 30 cm. ; bulb coats lighter colored 6. A. palmeri. 



Bulbs arising from rootstock. 



Umbels erect; perianth segments acute; stamens not 

 exserted; rootstocks long and slender; bulbs 



usually solitary 3. A. rhizomatum. 



Umbels cernuous; perianth segments obtuse; stamens 

 exserted; rootstocks short and thick; bulbs 

 usually clustered. 

 Leaves not carinate, 3 to 6 mm. wide in dried 



specimens; flowers numerous 1. A. recurvatum. 



Leaves carinate, 2 mm. wide or less; flowers few 2. A. neomexicanum. 



1. Allium recurvatum Rydb. Mem. N. Y. Bot. Gard. 1: 94. 1900. 

 Typk locality: Indian Creek, Montana. 



Range: South Dakota and British Columbia to New Mexico. 



New Mexico: Chama; Santa Fe and Las Vegas mountains; Kingston; White and 

 Sacramento mountains. Open meadows, in the Transition and Canadian zones. 



2. Allium neomexicanum Rydb. Bull. Torrey Club 26: 541. 1899. 



Type locality: Organ Mountains, New Mexico. Type collected by Wooton, 

 October 14, 1894. 



Range: Colorado to New Mexico and Arizona. 



New Mexico: Tunitcha Mountains; Abiquiu Peak; Laguna Blanca; mountains 

 west of Grant; West Fork of the Gila; San Luis Mountains; Organ Mountains; Las 

 Huertas Canyon. Open slopes, in the Transition Zone. 



3. Allium rhizomatum Woot. & Standi. Contr. U. S. Nat. Herb. 16: 114. 1913. 

 Type locality: Gila Hot Springs, New Mexico. Type collected by Wooton, 



August 20, 1900. 

 Range: Known only from the type locality, in the Transition Zone. 



4. AUium scaposum Benth. PL Hartw. 26. 1840. 



Type locality: "Secus rivulos, Aguas Calientes," Mexico. 



Range: Western Texas to southern Arizona and southward. 



New Mexico: Sixteen Spring Canyon (Wooton). Transition Zone. 



Doctor Watson included this species with those having reticulate bulb coats, but all 

 the specimens we have seen (ten or a dozen sheets), including some to which he refers, 

 have scaly bulb coats, the inner ones very thin and white or hyaline, the outer some- 

 what thicker, yet light-colored. His illustration in the Botanjr of King's Survey, 

 plate 38, was no doubt made with a compound microscope, since the markings are 

 not visible under a hand lens. The illustration of the flower is excellent. 



