130 ORCHIDACEiE. 



ously 4 to 6-nerved, emarginate at apex, with a slender tooth in the 

 notch, 7 lines long, the inner narrower; anthers short-sagittate; style 

 terminated by an abruptly thickened or obclavate structure, the 

 attenuate portion being divided into 3 short stigmas; capsule globose, 

 2 to 3 lines long; seed obscurely pitted. 



Very common throughout California. Mar.-Apr. Called "Azulea " 

 and "Villela" by Spanish-Californians. 



2. S. Californicum Ker. Golden-eyed Gras?. About the size 

 of the last but the stems unbranched and the leaves somewhat 

 broader; bracts rather unequal, enclosing 3 to 7 flowers; perianth 

 bright yellow; segments 4 to 6 lines long, 5 to 7-nerved, obtuse or 

 acutish; anthers 1£ lines long, about equaling the filaments; style 

 cleft below the middle; capsule obovate-oblong, 4 lines long. 



Wet places near the coast from San Diego northward beyond 

 California. Apr. 



13. ORCHIDACE/E. Orchid Family. 



Perennial herbs with corms, bulbs, tuberous roots or rootstocks and 

 sheathing leaves often reduced to scales. Flowers perfect, irregular, 

 bracted, either solitary or in spikes or racemes. Sepals 3, alike. 

 Petals 3, 2 alike; the third petal called the "lip" commonly 

 dissimilar in color, size and shape, often enlarged, sac-like or spurred, 

 in our genera most frequently brought into an inferior position (i. e., 

 on the lower side of the flower), by twisting of the ovary. Filaments 

 united with the single style forming a column, anther 1 (in 

 Cypripedium 2), situated on the apex of the column and just above 

 or behind the stigma, which is a viscid surface facing the lip. 

 Pollen agglutinated into 2 to 8 pear-shaped masses. Ovary inferior, 

 commonly long and twisted, 1-celled. Fruit a 3-valved capsule. 

 Seeds innumerable, minute. 



Plants with green herbage. 

 Flowers few and showy; lip an inflated sac; stem leafy . . 1. Cypripedium. 

 Flowers in spikes or racemes. 



Perianth with a spur 2. Habenaria. 



Perianth spurless. 

 Stem leafy. 



Raceme loose with foliaceous bracts; flowers greenish or rose-color . . . 



3. Epipactis. 



Spike dense and twisted; flowers white 4. Spiranthes. 



Stem scape-like, the leaves in a radical cluster; flowers white 



5. Goody era. 



Flower solitary, showy; lip sac-like; leaf 1, basal 6. Calypso 



Plants red-lish-brown, destitute of green herbage and the leaves reduced and 

 scale-like 7. Coralloriiiza. 



1. CYPRIPEDIUM. Lady's Slipper. 

 Stems leafy from tufted fibrous roots. Leaves large. Flowers few 

 or solitary, large and showy, leafy bracted. Sepals spreading, in ours 

 seeming as if only 2, the lateral completely or almost completely 

 united into one under the lip, which is an inflated sac with the 

 incurved margin auricled near the base. Column very short, 



