ORcniDE/E, (orchis family.) 757 



cells parallel, with beak between. PoUinia with a viscid gland at base 

 of caudicle. Pouch 2-cellcd, enclosing glands. Ovjiry o-enerally 

 twisted — Herbs, (ours) with tuberous roots. ^ 



Sect. I. Herorchis. Sepals coiinivent, forming a hood. 



* Tillers ovate-globular, undivided, not tajjerinff. Bracts memhrarmis. 



t Bracts about as long as ovary or longer. 



X Ldbelhim entire. Floicers .02 to .03 loi^g. 



1 O. papilionacea. 



\ I Lalellum o-loled or -imrted. 



2 0. Morio, 3 coriophora, 4 sancfca, 5 tridentata, G lactea. 



1 1 Bracts very small, scale-lil-e. Labellum trix>artite. 



T O. Simla, 8 puuctulata, 9 longicruiis. 



* * Tubers cylindrical, fusiform-taijering, sometimes lobed. Bracts 

 herbaceous. 



10 0. angustifolia. 



Sect. II. Androrchis. Sepals spreading or refiexed. 

 '■^ Tubers ovate-globular, imdivided, not tajjering. 

 t Bracts membranous, usually colored, sirnjyle-nerved. 

 I Labclhim undivided. 



11 O. saccata. 



\ \ Labelhim more or less d-lobed. 



12 0. mascula, 13 Anatolica. 



1 1 Bracts membranous, tJie loicer especially netted-nerved. 



14 O. palustris, 15 laxiflora. 



* * Tubers palmate-lobed or -cleft, the lobes tapering-fusiform. Bracts 

 memh^anous, the loicer especially netted-nerved. 



16 0. incarnata, 17 latifolia, 18 pseudosambucina, 10 maculata, 



1. O. papilionacea, L. % Butterfly Orchis. .2 to .3; tubers 

 globular. Leaves oblong to lanceolate. Spike loose, usually few- 

 floweredj^'ovate to oblong, .04 to .15 long; bracts 3-5-nervcd, purplish, 

 longer than ovary; sepals and petals lanceolate-ovate to lanceolate, 

 purple ; labellum orbicular to obovate, constricted at base, usually cre- 

 nate-denticulate, deep red, longer than sepals ; spur cylindrical-subulate, 

 somewhat shorter than ovary — March to May — Rocky places and 

 hillsides; coast and lower zones of mountains; Zahlcli. 



2. O. Morio, L. % .25: root-leaves oblong, .05 to .1 long: 

 stem-leaves clasping, sheath-like. Spike loose; bracts oblong, about 

 3-nerved, purplish, sepals and petals oblong, short, obtuse, light pink 

 with green nerves; lobes of light pink labellum entire or dentate, the 

 middle one retuse: spur ascending, or horizontal, cylindrical, dilated 



