112 ORCHID ACEJE. 



6. H. Cooperi, Watson. Stout: lip ovate: upper sepal ovate. San Diego. 



7. H. gracilis, Watson. Like No. 4: lip linear: spur saccate. Or., Wash. 



8. H. Michssli, Greene. Stout stem, leafless: spike dense: sepals ^ in. long. S. Cal. 



5. SPIRANTHES, Richard. 



1. S. IloiiianzofS.ana, Chamisso. Spike dense, conspicuously bracteate, 1-4 in. long: 

 perianth greenish-white, | in. long, curved (Called Ladies' Tresses). Wet places. 



2. S. porrifolia, Lindl. Similar: flovp-ers smaller: 2 callosities at base of lip. 



6. GOODYEARA, Robt. Brown. 

 1. G. STenziesii, LindL Scape pubescent, 6-15 in. high: leaves smooth, 2-3 in. long, 

 in a rosulate tuft: spike of puberulent white flowers 1-sided. [Rattlesnake Plantain.) 



7. LISTEBA, Robt. Brown. 



1. li. 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. 



2. L. cordata, R. Br. Smaller: flowers minute, smooth. (Twayblade.) N. Cal., N. 



8. EPIPACTIS, HaUer. 



1. E. gigantea, Dougl. Leafy, 1-4 ft. high: leaves ovate to lanceolate: flowers 3-10, 

 greenish, purple- veined: sepals ovate-lanceolate, ^-§ in. long; lip as long. Along 

 streams. 



9. CEPHALANTHERA, Richard. 

 1, C. Oregana, Reich, f. Parasite: perianth ^ in. long; sepals and petals lanceolate; 

 lip as in Epipactis with wavy-crested nerves. Forests, N. Cal to Or. 



10. CYPRIPEDIUM, Linnaeus. 



1. 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. 



2. C. montanum, Dougl. Leafy, 1-2 ft. high: flowers 1-3; sepals and wavy-twisted 

 petals brownish, narrow, 1^-2^ in. long: lip oblong, white, purple- veined. Cent. 

 Cal. to Or. 



3. C. Californicum, Gr. Often taller: flowers 3-12: sepals ]^ in. long: lip oboToid- 

 globose. In swamps or wet places. N. Cal. 



IRIDACE^. 



Perennial herbs with sword-ehaped or grass-like leaves, the divisions of the superior 

 perianth all petaloid and convulute in the bud, withering-persistent. 



