LILIACEAE. 83 



Anthers fixed near the base, slightly if at all versatile; petals and sepals 

 obbvate-oblanceolate, not clawed, in ours mottled ; nectary a shallow pit. 



3. Fritillaria. 

 Bulb tunicated, anthers strictly basifixed. 



Leaves 2, basal or nearly so ; flowers nodding. 4. Eeythronium. 



Leaves several, alternate ; flowers not nodding. 5. Lloydia. 



i. LEUCOCRINUM Nutt. 



I. Leucocrinum montanum Nutt. In sandy soil from S. D. to Mont, and 

 Colo. — Alt. 4000-6500 ft. — ^Denver; headwaters of Clear Creek; Boulder; 

 Pike's Peak; Colorado Springs; Larimer County; New Windsor; Table 

 Rock; Howe's Gulch; gulch west of Dixon Carton; Spring Caiion; bank of 

 Cache la Poudre River; Rist Caiion; bluffs north of La Porte; hills west 

 of Soldier Caiion; vicinity of Horsetooth Gulch; Boulder; Colorado City. 



^. LILIUM L. Lily. 

 Leaves linear. 1. L. umbellatum. 



Leaves lanceolate. 2. L. montanum. 



1. Lilium umbellatum Pursh. Hills, among bushes, from Hudson Bay to 

 B. C, Ky. and Colo. — Baxter's ranch; Empire. 



2. Lilium montanum A. Nelson. On hills, among bushes, from Mont, to 

 Colo.— Alt. 6500-10,000 ft.— Crystal Park; West Spanish Peak; Hamor's 

 Lake, north of Durango; Larimer County; Long Gulch; Stove Prairie Hill; 

 Rist Canon; Laramie River, at Sherwood's. 



3. FRITILLARIA L. Fritillary, Tiger Lily. 



1. Fritillaria atropurpurea Nutt. On hillsides from N. Dak. to Ida., Colo, 

 and Calif. — Alt. 4000-9500 ft. — Poverty Ridge, near Cimarron ; Lamb's ranch. 



4. ERYTHRONIUM. Adder's-tongue, Dog-tooth Violet. 



1. Erythronium parviflorum (S. Wats.) Gooding. (£. grandiHorum parvi- 

 Uorum S. Wats.) On rich hillsides from Wyo. to Colo, and Utah. — Alt. 

 8500-11,500 ft. — Cameron Pass; Bear Creek Divide; West La Plata Moun- 

 tains ; North Park ; Grand Mesa ; mountain west of North Park ; source of 

 Leroux; Rabbit-Ears, Larimer Co. 



5. LLOYDIA Salisb. 



L. Lloydia serotina (L.) Sweet. In exposed alpine or arctic regions from 

 Mont, to Alaska and Colo. ; also in the Old World. — Alt. 10,000-14,000 ft. — 

 Crystal Lake; Arapahoe Peak; headwaters of Clear Creek; Red Mountain; 

 Saddle Cliff, Pike's Peak; Alpine Tunnel; Carson; West Spanish Peak; Mt. 

 Hesperus ; mountains above Graymont ; Franklin ; mountains northeast of 

 Boreas. 



Family 28. CON VALLARI ACE AE Link. Lily-of-the-Valley Family. 



Sepals and petals distinct. 



Flowers white, in terminal racemes or panicles ; anthers introrse, stem simple. 



I. Vagnera. 

 Flowers axillary or terminal, solitary or in small umbelliform clusters ; anthers 

 extrorse or opening laterally ; stem branched. 



