110 LILIACE^. (lily family.) 



1. C. Californicum, Gr. Stems 1 to 3 ft. liigh, bearing several to twenty (ir more 

 flowers; lip nearly white, 5 to 7 lines long. Cool swamps. 



2. C. inontanum, Dougl. Stems shorter; flowers rarely more than 2 or 3; lip much 

 larger, white marked with yellow and purple. Forests. 



Order 54. IRIDACEiE. 



Herbs with 2-ranked leaves, the flower buds inclosed by bracts. Perianth adherent 

 to the ovary, segments in two, often unequal, sets. Stamens 3, anthers extrorse. Ovary 

 3-celled, style 1, stigmas 3, often pctaloid. 



1. IRIS, L. Flag. 

 Outer segments of the perianth spreading or reflexed and larger than the erect or 

 incurving petals. Stamens distinct, covered by the jjetaloid stigmas. Plants sj^ringing 

 from thickened rootstocks, with sword-shaped leaves and showy flowers. 



1. I. longipetala has large, light blue flowers, with rather slender petals. Grows 

 in masses on moist hill sides. 



2. I. Douglasiana has (usually) light yellow flowers, with the tube of the perianth 

 prolonged considerably beyond the ovary. — Open woods. 



3. I. macrosiphon, Torr. Stems very short from a slender rootstock; leaves 

 slender; flowers bright purple; perianth tube very long and slender; ovary tapering to 

 a short peduncle. 



2. SISYRINCHIUM, L. 



Flowers small; the segments of the perianth flat, equal. Stamens united. Stigma 3- 

 cleft. Grass-like plants, with winged scapes. 



1. S. Bermudianum, L. Flowers blue; ovary globular. — Hill sides. 



2. S. liueatum, Torr. Flowers yellow, larger; ovary nearly ovoid. — Swamps. 



Order 55. LILIACEiE. 



Herbs, or rarely woody plants, with regular and symmetrical flowers; the perianth free 

 from the chiefly 3-celled ovary, with the divisions all petaloid (except in Trillium and 

 Calochortns), the stamens ojiposite the divisions of the perianth (in some Brodicea, 3 

 alternating with 3 staminodia), with 2-celled anthers; fruit a few-many-seeded pod or 

 berry; the seeds with copious albumen. 



Series I. Floral bracts present and more or less scarious. Perianth persistent; 

 segments 1 -several-nerved. Stamens perigynous; anthers introrse. Style undivided, 

 persistent (except in Chlorogalum). Fruit a loculicidal capsule with black seeds (except 

 in Smilacina and Maianthemum). See Leucocrinum at the end. 



§ 1. InJloresce7ice innhellate, upon a nukeil scape arising from a corm, or hidh. 

 * Bracts 2 (sometimes 4), broad and spathaceous; capsule lobed Allium. 1 



