JUNCACEAE. 81 



2. Juncoides comosum (Meyer) Sheld. (Luzula comosa Meyer.) In wet 

 meadows from Mont, to Alaska, Colo, and Cal. Alt. about 8500 ft. Crystal 

 Park. 



3. Juncoides intermedium (Thuill.) Rydb. (Luzula campestris Am. auth.) 

 In woodlands and meadows from Newf. to B. C, Colo, and Calif. Alt. 

 8500-10,000 ft. North Park ; Chambers' Lake ; Middle Park. 



4. Juncoides subcapitatum Rydb. Along mountain streams, near the tim- 

 ber line. Found only at the type locality. Silver Plume. 



5. Juncoides spicatum (L.) Kuntze. (Luzula spicata Desv.) On hillsides 

 and in mountain meadows from Greenl. to B. C., N. H. and Calif. Alt. 

 10,000-13,000 ft. Cameron Pass; Pagosa Peak; La Plata Mountains; Pike's 

 Peak; West Spanish Peak; Seven Lakes; Mt. Harvard; Mt. Garfield; Gray's 

 Peak. 



Family 26. ALLIACEAE Batch. ONION FAMILY. 



i. ALLIUM L. ONION, GARLIC, LEEK, CHIVES. 



I. Bulb crowning a persistent rootstock. 



Leaves terete and hollow. i. A. sibiricum. 



Leaves flat or channeled, not hollow. 



Umbels not nodding ; petals and sepals long-acuminate. 



2. A. brevistylum. 

 Umbels nodding ; petals and sepals obtuse or acute. 



Leaves rounded-convex on the back, not keeled. 3. A. recurvatum. 

 Leaves almost flat and keeled. 



Umbels few-flowered ; leaves 1-2 mm. wide. 4. A. neo-mexicanum. 



Umbels many-flowered ; leaves 35 mm. wide. 5. A. cernuum. 



II. Bulbs without rootstock. 

 Outer bulb coat fibrous. 



Umbels bulblet-bearing. 6. A. rubrum. 



Umbels not bulblet-bearing. 



Capsule not crested ; involucre usually 3-leaved. 7. A. Nuttallii. 

 Capsule more or less crested. 



Bracts broadly ovate in anthesis, not reflexed ; flowers white or light-rose ; 



several layers of the bulb-coat fibrous. 

 Petals and sepals over i cm. long ; peduncles often 2 or 3 from the 



loose sheaths ; bracts 3. 8. A. macropetalum. 



Petals and sepals less than i cm. long ; peduncles single from the 



close sheaths ; bracts usually 2. 

 Plant 3-6 dm. high; pedicels 12-15 mm. long; petals and sepals 6-8 



mm. long. 9. A. Geyeri. 



Plant 1-3 dm. high; pedicels 8-12 mm. long; petals and sepals about 



5 mm. long. 10. A. reticulatum. 



Bracts lanceolate, usually 3, soon reflexed ; only the outer bulb-coat 



fibrous; flowers red-purple. n. A. Pikeanum. 



Outer bulb-coat not fibrous, but often more or less reticulated. 



Petals long-acuminate, serrulate. 12. A. acuminatum. 



Petals acute, not serrulate. 13. A. Brandegei. 



1. Allium sibiricum L. (A. Schoenoprasum Am. auth., mostly; not L.) 

 In dry places from Me. to Alaska, N. Y., Colo, and Oreg. Alt. 5000-8500 

 ft. Upper Laramie River; Northern State line. 



2. Allium brevistylum S. Wats. In wet woodlands from Mont, to Colo, 

 and Utah. Alt. 6500-9000 ft. Canon of the Cache la Poudre; North Park, 

 near Teller; North Platte, near Hebron; Cerro Summit, near Chambers 

 Lake; forks of Poudre and Big South. 



6 



