112 ORCHIDACEE. 
PIS 
1 
2 
au 
H. Cooperi,' Watson. Stout: lip ovate: upper sepal ovate. San Diego. 
H. gracilis, Watson. Like No. 4: lip linear: spur saccate. Or., Wash. 
H. Michseli, Greene. Stout stem, leafless: spike dense: sepals 4 in. long. 8S, Cal 
5. SPIRANTHES, Richard. 
8. Romanzoffiana, Chamisso. Spike dense, conspicuously bracteate, 1-4 in. long: 
perianth greenish-white, 4 in. long, curved (Called Ladies’ Tresses). Wet. places. 
8. porrifolia, Lindl. Similar: flowers smaller: 2 callosities at base of lip. 
6. GOODYEARA, Robt. Brown. 
G. Menziesii, Lindl. Scape pubescent, 6-15 in. high: leaves smooth, 2-3 in. long, 
in a rosulate tuft: spike of puberulent white flowers l-sided. (Rattlesnake Plantain.) 
% LISTERA, Robt. Brown. 
L, Convalarioides, Nutt. Slender, 3-12 in. high: flowers purplish in a pubescent 
raceme: lip 2-lobed or emarginate, toothed at base, 2-5 lines long. Damp woods. 
L. cordata, R. Br. Smaller: flowers minute, smooth. (Twayblade.) N. Cal., N. 
8. EPIPACTIS, Haller. 
E. gigantea, Dougl. Leafy, 1-4 ft. high: leaves ovate to lanceolate: flowers 3-10, 
greenish, purple-veined: sepals ovate-lanceolate, 4-3 in. long; lip as long. Along 
streams. 
9. CEPHALANTHERA, Richard. 
Cc. Oregana, Reich. f. Parasite: perianth } in. long; sepals and petals lanceolate; 
lip as in Zpipactis with wavy-crested nerves, Forests, N. Cal to Or. 
10. CYPRIPEDIUM, Linnzus. 
C. fasciculatum, Kellogg. Villous, 2-6 in. high: leaves ovate, a pair: peduncle 
viscid: flowers several in a cluster or 1, greenish. (Bradley’s Cypripedium). Rare. 
C. montanum, Dougl. Leafy, 1-2 ft. high: flowers 1-3; sepals and wavy-twisted 
petals brownish, narrow, 14-24 in. long: lip oblong, white, purple-veined. Cent. 
Cal. to Or. 
©. Californicum, Gr. Often taller: flowers 3-12: sepals } in. long: lip obovoid- 
globose. In swamps or wet places. N. Cal. 
IRIDACER. 
Perennial herbs with sword-shaped or grass-like leaves, the divisions of the superior 
perianth all petaloid and convulute in the bud, withering-persistent, 
