ORCHIDACE^ 26s 



Dry banks and hillsides, preferably limestone. June to August. 



Distribution.— "biot frequent in Switzerland, more so in France. 

 Central and Southern Europe, extending eastward to the Caucasus 

 and northward to Denmark and the British Isles. 



CcELOGLOSSUM Hartm. 



Cceloglossum viride Hartm. {Habenaria viridis R.Br.). Frog Orchis. 

 (Plate XXXI.) 



Tubers more or less lobed. Stem 3-8 inches high, with a few 

 oval or oblong-lanceolate leaves, and a short spike of yellowish 

 green flowers (often brownish in the mountains) with very short 

 spur and long hanging lip, very shortly lobed at the tip. Bracts 

 usually longer than the ovary. 



Pastures and hillsides in the Alps and sub- Alps and Jura. 



Distribution. — Europe from Mediterranean to Arctic regions, 

 Siberia. British. 



Ophrys L. 



Sepals and petals spreading, lip usually convex, velvety, not 

 spurred. Ovary not twisted ; otherwise like Orchis. 



Intermediate forms often occur which are difficult to place. 



Ophrys afifera Hudson. Bee Orchis. 



Sepals usually pink inside. Lip dark purple, convex, and velvety, 

 like the body of a bumble-bee. Lateral perianth-segments linear, 

 obtuse. Spike usually 3-6 flowered, very handsome. 



Dry, open, grassy places in the hills ; less common in Switzerland 

 than 0. arachnites, which grows on hot hillsides. May, June. 



Distribution. — Most of Europe, especially Central and Southern ; 

 N. Africa. British. 



Ophrys aranifera Hudson. Spider Orchis. 



Sepals pink or greenish. Lip usually not lobed, or slightly 

 incised, broad, convex, without an appendage. Petals oblong, 

 almost glabrous. Resembling the last in habit. 



Sunny hillsides, not frequent in Switzerland. May. 



Distribution. — Central and Southern Europe, Algeria; rare in 

 England. 



Ophrys muscifera Hudson. Fly Orchis. 



Sepals yellowish green. Lip nearly flat, narrow, reddish brown, 

 with a blue patch. 2 lateral lobes linear, small, middle lobe 

 deeply bifid. Flowers distant. 



Grassy hillsides, especially on limestone, ascending to about 

 4000 feet in Switzerland, as, e.g. at Engelberg. May, June. 



Distribution. — Europe, especially Central. British. 



