366 
Orchidacere. 
schenen), with a scent of vanilla. Spur hardly J /3 as 
long as the ovary. 0. nigra Sw.—Alp., subalp. and 
Jura. 6, 7 .... angustifolia Rich. 2096. 
OBS. Forms hybrids with Gymnadenia conopea (N. fragrans Saut., N. 
Moritziana Grral.), and with G. odoratissima (N. suaveolens Koch, N. Henf- 
Jeri Kern.). 
548. Ophrys. Ophrys. XX, 10. 
1. Lip almost flat, 3-fid; the middle lobe longer, deeply 
2-lobed. The 2 inner divisions of the perianth linear- 
filiform, only about 2 /3 as long as the outer. 0. myodes 
Jacq.—Sunny pasturages, hills; distrib. 5, earlier than 
the following species. . . . muscifera Huds. 2097. 
— Lip convex. The 2 inner divisions of the perianth ob¬ 
long or triangular, much shorter than the outer or, in¬ 
deed, hardly visible ...... 2 
2. Outer divisions of the perianth greenish, the inner ob¬ 
long, glabr. Lip undiv., or faintly incised at the top, 
without an appendage.—As the last (wanting in U. L.). 5 
aramfera Huds. 2098. 
— Outer divisions of the perianth rose-coloured, the inner 
triangular, short-pubescent. Lip with an appendage at 
the top ......... 3 
3. Lip orbicular-obovate, undiv.; appendage curved up¬ 
wards. Column with a short straight beak. 0. arachnites 
Host.—As the last (wanting in G.). 5 fuciflora Rchb. 2099. 
— Lip oblpng-obovate, 3—5-lobed; appendage curved down¬ 
wards Column with a longer, flexible beak. O. chlorantha 
Heg. (with greenish fls).—b. Trollii Iieg. (0. fuciflora- 
muscifera Reg.) Lip elongated, acute, not recurved; la¬ 
teral lobes more or less reduced. (Winterthur, Bex.)— 
As the last, but gen. rarer and rather later (wanting in 
G. T.).apifera Huds. 2100. 
OBS. Hybrids: O. aranifera-muscifera (O. apiculata J. C. Schmidt); 
O. fuciflora-musciferu? (0. devenensis Rchb. f.) 
549. Chamaeorchis. Chamaeorchis. XX, 11. 
1. Tubers undiv. Ls several, narrow linear, as long as, or 
longer than, the stem. Fls yellowish green.—Alp. 7 
alpina Rich. 2101. 
550. Aceras. Aceras. XX, 11. 
1. Tubers undiv. Fls yellowish green. Lip hanging, 4-par- 
tite, with linear lobes.—Pasturages, sunny hills (wanting 
in G. T. 0. U. A.). 4—5 . .anlhropophora R. Br. 2102. 
551. Herminium. Musk-orchis. XX, 11. 
1. Tuber 1, with a second at the end of a stolon. Fls 
small, yellowish green, in a slender spike.—Pasturages 
especially of the mount and subalp. 5 Monorchis R. Br.2103. 
