ORCHIDACEAE (OKCHIS FAMILY) 



809 



615. H. clavellata. 



Flower X 1. Lip X 1%. 



Column X 2. 



appendages of the stigma oblong. ( Qymnadeniopsis Rydb. ) — Swamps along 

 the coast, Del. to Fla., westw. to Ark. and Tex. June-Aug. Fig. 614. 



1- -I- Leaves cauline, one or two. 



** Lip crenulate. 



6. H. Integra (Nutt.) Spreng. Stem about 37 cm. high, several-leaved ; the 

 lower leaves elongated, oblong-lanoeolate, the others becoming smaller and 

 braot-llke; raceme densely many-fiowered, cylindrical; flowers small, yellow ; 

 lip ovate, entire or slightly crenulate, or short-toothed along the margin, shorter 

 than the awl-shaped descending spur ; appendages of the stigma two, lateral, 

 oblong, fleshy. {Gymnadeniopsis Kydb.) — Wet pine-barrens, N. J. to Fla., w. 

 to Tenn. and Tex. July, Aug. 



■^+ +H- Lip S-toothed at the apex. 



7. H. clavellata (JMichx.) Spreng. Stem 19-40 cm. high, slender, with one 

 or two oblong or oblanceolate obtuse leaves, and two 



or three linear-lanceolate bracts above ; raceme 

 3-16-flowered, subcylindric ; flowers greenish-white ; 

 lip wedge-oblong, truncate, with three short apical 

 teeth or lobes ; spur slender, slightly clavate, curved 

 upwards, longer than the ovary ; appendages of the 

 stigma 3, oblong, clavate-tuberculate, one outside each 

 orbicular gland, and one between them rising as high 

 as the anther-cells. {S. tridentata Hook. ; Oymna- 

 deniopsis clavellata Rydb.) — Bogs and moist soil, 

 Nfd. to Minn, and south w. July, Aug. Fig. 615. 



1- ■»- -1- Leaves radical. 



++ Lip less than 5 mm. long. 



8. H. unalasc6nsis (Spreng.) Wats, riant slender, 3-5 dm. high, leafy at 

 base; leaves oblanceolate, withering be/ore the flowers open; sepals slightly 

 gibbous at base, 1-nerved, narrowly oval, lateral ones adnate at base to the lip ; 

 petals lanceolate, obtuse ; lip oblong-hastate ; spur filiform or slightly clavate, 

 shorter than the ovary. (Piperia Rydb.) — Damp woods, Anticosti I., Que.; 

 Out., westw. to Alaska and Cal. June-Sept. 



++ -M- Lip more than 5 mm. long. 



— Spur about equal to the lip. 



9. H. obtusita (Pursh) Richards. Plants 10-26 cm. high ; leaf solitary, 

 basal, obovate or spatulate-oblong ; flowers greenish or whitish, 5-15 in a loose 



raceme at the summit of a naked scape ; upper sepal broad and 

 rounded, lateral sepals and the petals lance-oblong; lip entire, 

 linear-lanceolate, deflexed, 6 mm. long, about the length of the 

 tapering curved spur. {Lysiella Rydb.) — Swamps and rich 

 woods, Nfd. to Alaska, s. to N. Y., Minn, and Col. 

 July, Aug. (Eu.) Fig. 616. 

 = = Spur two or more times longer than the lip. 

 10. H. Hookeri Torr. Leaves orbicular or 

 elliptical, near the ground, 3.5-10 cm. broad; 

 scape usually ebracteate, 12-16 cm. high, having 8-20 upright 

 yellowish-green flowers in a strict raceme 2-4 cm. through ; 

 sepals ovate-lanceolate, the upper sepal dilated at base, acumi- 

 nate; lip lanceolate, pointed, about 1 cm. long; spur slender, acute, 2 cm. long. 

 (Lysias Hookeriana Rydb.) —Dry or damp woods, e. Que. to Pa., w. to Minn 

 June, July. Fig. 617. 



11. H. orbicuiata (Pursh) Torr. Leaves orbicular or elliptical, 6-19 cm. 

 broad, spreading flat on the ground, shining above, silvery beneath ; scape with 

 one or more lanceolate bracts, 6-32 cm. high, having 10-20 or more greenish- 

 white flowers in a loose raceme 4-6 cm. through ; upper sepal orbicular, lateral 



616. H. obtusata 



617. H. Hookeri 



