ORCHIDACEAE (ORCHIS FAMILY) 



309 



615. H. clavellata. 



Flower X 1. Lijt x 1%. 



Column X 2. 



appendages of the stigma oblong. (Gymnadeniopsis Kydlj.) —Swamps alone 

 the coast, Del. to Fla., westw. to Ark. and lex. June-Aug. Fig. tJ14. 

 •♦- •*- Leaves cauline, one or two. 

 ** Lip crenulate. 



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

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

 bract-like; raceme densely many-fiowered, cylindrical; flowers 'Imall. yelloir • 

 lip ovate, entire or sliglitly crenulate, or short-toothed along the mar-in. shorter 

 than the awl-shaped descending spur ; appendages of the stigma t\V(n lateral 

 oblong, fleshy. {Gymnadeniopsis Kydb.) — Wet pine-barrens, N.J. to F'a. w! 

 to Tenn. and Tex. July, Aug. '' 



++ ++ Lip ^-toothed at the apex. 



7. H. clavellata (Michx.) 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, sabcylindric ; 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. {H. tridentata Hook.; Gymna- 

 deniopsis clavellata Rydb.) — Hogs and moist soil, 

 Nfd. to Minn, and south V7. July, Aug. Fig. 615. 



^- •»- •«- Leaves radical. 



++ Lip less than 5 mm. long. 



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

 leaves oblanceolate, withering before 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 ; spiir filiform or slightly clavate, 

 shorter than the ovary. (Piperia Kydb.) — Damp woods, Anticosti I., Que.-, 

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



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



= Spur about equal to the lip. 



9. H. obtusata (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 ; lij^ entire, 

 linear-lanceolate, deflexed, 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. 

 = = Sp7ir 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 

 yellowisli-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 ; sptir slender, acut«, 2 cm. long. 

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

 June, July. Fig. 617. 



11. H. orbiculata (Pursh) Torr. Leaves orbicular or elliiitical, 6-10 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 



8. 



