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. 

 Leaves flat or channeled, not hollow. 



Umbels not nodding ; petals and sepals long-acuminate. 



Umbels nodding ; petals and sepals obtuse or acute. 

 Leaves rounded-convex on the back, not keeled. 

 Leaves almost flat and keeled. 



Umbels few-flowered ; leaves 1-2 mm. wide. 

 Umbels many-flowered ; leaves 3-5 mm. wide. 

 IL 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. g. A. Geyeri. 



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

 S mm. long. 10. A. reticulatum. 



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

 fibrous; flowers red-purple. 11. 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. 



I. 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. 



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

 and Utah. — Alt. 6500-9000 ft. — Carion 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 



