A SYNOPSIS OF THE VEGETABLE KINGDOM. 



51 



DD. Sepals larger than 

 the petals, often 

 concealing the lat- 

 ter 10. 



BB. Inflorescence lateral or on 

 special lateral branches, 

 not terminating the 

 growth of the main 



shoot 



c. Leaf-arrangement con- 

 volute 



D. Stems slender; inter- 

 nodes not enlarged 

 or all equally 



thickened 



E. Labellum enveloping 

 the column, or 

 united with it, 

 without a hjpo- 



chil 11. PHA,Tus Tribe. 



EE. Labellum membran- 

 ous, jointed to 

 the column, or 



spurred 12. Cvrtopodium 



Tribe. 

 EEE. Labellum often with 

 a distinct hypo- 

 chll, united with 

 the base of the 

 column but not 



jointed 13. Catasetcm Tribe. 



DD. Stems pseudobulb- 



ous. a single inter- 

 node thickened in- 

 to a pseudobulb. . 

 E. Floral axis arising 

 below the new 



leafy shoot 



F. Labellum mem- 

 branous jointed 

 at the foot of 

 the column, 

 mostly with 

 1 o n g i t u dinal 



ridges 14. Lycaste Tribe. 



PF. Labellum fleshy, 

 firmly united 

 with the base 



of the column., jg qongora Tribe. 

 EB. Floral axis arising 

 above the new 

 leafy shoot : label- 

 lum mostly with 

 transverse ridges. jg 



cc. Leaf-arrangement con- 

 duplicate 



D. Growth determinate, 



sympodial 



e. Labellum moveably 

 joined to the col- 

 umn 



F. Stems typically 

 slender with all 

 the internodes 

 similar; inflor- 

 escence arising 

 from the sum- 

 mit of the in- 

 ternodes 17. Dendroeicm 



T 

 FF. Stems with pseud- 

 dobutbs consist- 

 ing of a single 

 internode : in- 

 florescence be- 

 low the pseudo- 

 bulb, either 

 above or below 

 the leafy shoot 

 of the same or- 

 der, p o 1 1 1 n i a 

 mostly without 

 appendages. . ..1 



FFF. Stems m s t ly 

 with pseudo- 

 bulbs consist- 

 ing of one in- 

 ternode : inflor- 

 escence arising 



below the leafy 

 shoot of the 

 same order : 



pollinia provid- 

 ed with stipes.19. Maxillaria 



Tribe. 

 PFFF. Stems typically 

 without pseudo- 

 bulbs : inflores- 

 cence arising 

 above the leafy 

 shoot of the 

 same order : 



pollinia provid- 

 ed with distinct 



stipes 20. HuNTLETA Tribe. 



ee. Labellum somewhat 

 moveable : pollinia 

 with transverse 

 c a u d i c I e s and 

 broad stipes : Ivs. 



strap-shaped 21. Cvmbidium Tribe. 



EEE. Labellum firmly 

 ioined with the 

 foot of the col- 

 umn, bearing 

 1 o n g i t u d 1 n al 

 ridges, crests, 

 etc. : pollinia with 



distinct stipes. . ..22. Oncidiom Tribf.. 

 DD. .Growth indetermi- 

 nate, monopodial..2.3. Sarcanthus 



Tribe. 

 (Summary of Genera.) 



1. CvPRiPEDiuM. Tribe. 



a. Ovary 1-celled 1. rvrRirEDiUM. 



AA. Ovary 3-celled 2. Selenipediuu. 



2. Ophrvs Tribe. 



A. Anthers erect : column ab- 

 sent or very short 



B. Stigmas sessile. (Sera- 



piadew 



c. Viscid glands of the 

 pollinia inclosed in 

 separate pouches : 



labellum convex, 



hairy 3. Ophrts. 



CC. Viscid glands enclosed 

 in a common pouch. 

 D. Labellum spurred.. .. 4. OncHIS. 

 DD. Labellum not spur- 

 red 5. Serapias. 



BB. stigmas more or less 

 elevated on stalks. 



iHabenarie(F.) 



c. The stigmas short, 

 broad : labellum 

 somewhat adnate to 

 the column, spurred.. 6. Cyxobchis. 

 cc. The stigmas slender or 

 cylindrical : labellum 

 free, long-spurred. ..7. Habenaria. 

 AA. Anthers deflexed : column 

 evident, long or short. 

 ( .S'fl/i/)iC(F) viscid glands 

 of tlie pollinia separate.. S. DiSA. 



3. Neottia Tribe. 



A. Anthers usually much ex- 

 ceeding the rostellum : re- 

 moval of the viscid glands 

 not leaving a well de- 

 fined furrow in the rostel- 

 lum 



b. I^abellum without a hypo- 



chil, not spurred 



c. Flowering stems with- 

 out Ivs. ; leafy stems 

 generally appearing 

 later. (Pogoniew.) . 

 D. Column clavate : la- 

 bellum free, not 



spurred 9. PoGONIA. 



DD. Column linear, dilat- 

 ed : labellum adher- 

 ent to its base, 

 with 2 very short 



spurs 10. Arethdsa. 



cc. Flowering stems, in the 



