LILY FAMILY 55 



3. FRITILLIrIA L. Tigeb Lily, Leopard Lilt. 



Leaves lanceolate or linear-lanceolate. 1. F. lanceolata. 



Leaves narrowly linear. 2. F. atropurpurea, 



4. OCHROCdDON Rydb. Yellow Bell. i. O. pudicus. 



5. ERYTHRONIUM L. Dog-tooth Violet, Adder-tongue, Star-strikers. 

 Style more or less clavate. 



Anthers of the stamens subequal. 



Anthers 3-4 mm. long; rarely longer, light yellow. 1. E. parvifiorum. 



Anthers 4—8 mm. long, usu^ly purplish, in age yellowish. 



Petals 2-3 cm. long; their veins almost equal and equally distributed. 



2. E. obtusatum. 

 Petals 3-5 cm. long (in secondary flowers sometimes smaller] ; midvein prom- 

 inent, separated from the next veins by rather broad veinless spaces, side 

 veins branched and arching towards the margin. 3. E. grandiflorum. 

 Anthers of the inner set of stamens much longer than those of the outer; veining of 

 petals resembling that of E. grandiflorum. 4. E. utahense. 



Style Sliform or nearly so; petals narrowly linear-lanceolate. 5. E. lepiopetalum. 



6. LLOYDIA Salisb. Alp Lilt. l. L. serotina. 



7. EREMOCRiNUM M. E. Jones. Desert Lilt. i. E. albomarginatum. 



8. QUAMASIA Raf. Camash, Blue Camas, Wild Htacinth, 



Swamp Sego. 



Flowers somewhat oblique, about 2 cm. long; divisions 3-veiued, or some of them 4- or 



5- veined. 1. Q. Quamash. 



Flowers regular, about 3 cm. long; divisions all 5-7- veined. 2. Q. Svksdorfii. 



Family 22. CONVALLARIACEAE. Lily-of-the-Valley Family. 



stem leafy; leaves alternate. 

 Sepals and petals distinct. 



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

 Petals and sepals 3; stamens 6. I. Vagnera. 



Petals and sepals 2; stamens 4. 2. Unifohum. 



Flowers extra-axillary or terminal and solitary or in small umbelliform clusters; 

 anthers extrorse or opening laterally ; stem branched. 

 Flowers extra-axillary, greenish white; filaments slender; anthers acute. 

 Corolla campanulate. 3. Stheptopus. 



Corolla rotate. 4. Kruhsea. 



Flowersterminal, yellow; filaments dilated; anthers obtuse. 5. DISPOBTOH. 

 Sepals and petals partially united into a tube; flowers axillary. 6. Poltgonatum. 

 Stem scapiform; leaves basal; flowers in terminal umbels, or solitary and terminal. 



7. Clintonia. 



1. VAGNERA Adans. Wild Spikenard, Wild Lilt-op-the-V alley, False 



Solomon's Seal. 

 Inflorescence paniculate. 



Petals and sepals scarcely half 2bs long as the stamens; fruit dark purple. 



1. V. brachypelala. 

 Petals and sepals almost equalling the stamens; fruit red with purple spots. 



Leaf-blades acuminate, the lower contracted at the base into distinct petioles; 



style about 0.5 mm. long. 2. V. racemosa. 



Leaf-blades acute, all sessile and more or less cleisplng; style fully 1 mm. long. 



3. V. amplexicauUs. 

 Inflorescence racemose. 

 Leaves 6-12, sessile. 



Petals and sepals linear or linear-lzuiceolate. 4. V. leptopetala. 



Petals oblong-lanceolate. 



Pedicels short, slightly if at all longer than the flowers or the fruit; leaves 



lanceolate, acute. 5. V. stellata. 



Pedicels long, the lower often 2-3 times as long as the flowers or the fruit. 

 Raceme strict; pedicels strongly ascending; leaves narrowly lanceolate, 



long-attenuate. 6. V. liliacea. 



Raceme zigzag; pedicels spreading; leaves broadly lanceolate, usually 

 abruptly acuminate. 7. V. sessiUfolia. 



Leaves 2-4, sheathing the low stem. 8. V. trifolia. 



2. UNIFOLItTM Adans. Two-leaved Solomon's Seal. 



Leavessubsessile;bladescordate-clasping,withshallowandnarrowsiniises. 1. U. canadenae. 

 Stem-leaves distinctly petioled; blades with deep and open sinuses. 2. U.dilatatum. 



3. STREPTOPUS Michx. Twisted-stalk. 



Plant branched; pedicels geniculate; berry white. 1. S. amplexifoUus. 



Plant simple; pedicels not geniculate; berry red. 2. S. cunipes. 



