112 ORCHIDACEAE. 



of the style; stigmas thread-like. (Name of Theophrastus for a bulbous 

 plant allied to Iris.) 



Flowers purplish blue; filaments united to the top 1. S. be! I urn. 



Flowers yellow; filaments united only at base 2. S. calif ornicum. 



1. S. bellum Wats. Blue-eyed Grass. Nigger-babies. Erect, 10 to 

 L5 in. high, the stems somewhat branching; leaves shorter than the stem, 1 to 

 2y 2 lines wide; bracts 1 in. long, enclosing about 7 flowers; perianth purplish 

 blue, segments oblong-obovate, conspicuously 4 to 6-nerved, emarginate at 

 apex, with a slender tooth in the notch, 7 lines long, the inner narrower; an- 

 thers 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-Calif ornians. 



2. S. californicum Ker. Golden-eyed Grass. 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. 



ORCHIDACEAE. 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 en- 

 larged, sac-like or spurred, in our genera most frequently brought into an in- 

 ferior 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 agglutin- 

 ated 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. K impact is. 



Spike dense and twisted; (lowers white 4. SPIRANTHES 



Stun scape like, the leaves in a radical cluster; flowers white 5. GoODYERA 



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



Plants reddish brown, destitute of green herbage and the leaves reduced and scale-like..., 



7. CORALLORHIZA 



1. CYPRIPEDIUM L. Lady's Supper. 

 stems Leafy from t ut'ied fibrous roots. Leaves large. Flowers few or 

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

 as it' only 2, the lateral completely or almosl completely united into one under 

 the lip, which is an inflated sac with the incurved margin auricled near the 

 base. Column very short, incurved, terminating in a disk-like stigma. Fertile 





