134 



CXXXIII. ORCHIDE^ (rOLFE). 



[Ang7'aicum. 



Racemes many-flowered, usually pen- 

 dulous. 

 Spur 4-8 in. long. 



Spur a little thicker near the 

 apex. .... 

 Spur not thickened at the apex 

 Spur 3 in. or less long. 



Sepals and petals elliptic-ob- 



long, apiculate 

 Sepals and petals lanceolate, acu- 

 minate. 

 Spur 4-5 iQ. long 

 Spur 1^-2^ in. long. 



Sepals and petals broadly 



lanceolate 

 Sepals and petals narrowly 

 lanceolate 

 Spur under 1 in. long. 



Leaves unequally bilobed, 



upper lobe subacute . 



Leaves obscurely bilobed or 



obliquely bidentate . 



Column long and slender. 



Spur filiform, with narrow apex 

 Spur filiform with clavate apex 

 Petals obovate, subobtuse or apiculate. 

 Bracts ovate-oblong, 2— 2|^ lin. long 

 Bracts triangular, minute 

 ffSepals and petals 1^2^ lin. long. 



Spur longer than the sepals and petals. 

 Bracts shorter than tlie pedicels. 



Leaves 3^-4 in. long, 6r-8 lin. broad . 

 Leaves 2-3 in. long, 3-3^ lin. broad . 

 Bracts longer than the pedicels 

 Spur shorter than the sepals and petals. 

 Leaves 5-8 lin. broad 

 Leaves 2^ lin. broad . , . . 



Leaves broader at the base than at the apex 

 **Stems more or less elongated, sometimes climbing. • 

 fLip entire or with very short or obtuse side lobes. 

 Lip f in. or more long. 

 Lip elliptic si anceolate. 



Western species ...... 



Eastern species 



Lip suborbicular-ovate or nearly quadrate. 

 Racemes long, many-flowered 

 Racemes short, 2-3-flowered. 



Leaves elliptical . . . , . 



Leaves linear ...... 



Lip less than ^ in. long (unknown in 35). 

 Bracts spreading and rather crowded. 



Spur inflated at the apex (unknown in 35). 

 Bracts 2^-3^ lin. long . . . . 



Bracts 1^-2 lin. long. 



v. A. kotscTiyanum. 

 8. A. Grantii. 



9. A. pachyurum. 



10. A. avicularkim. 



11. A. bilobum. 



12. A. JBatesii. 



13. A.fiexuosum. 



14. A. henriquesianui 



15. A. arachnopus. 



16. A. gracilUnium. 



17. A. rhodosfichim. 



18. A. luteo-alhum. 



19. A. Rohrii. 



20. A. Quintasii. 



21. A. malangeanum. 



22. A. dives. 



23. A. occidentale. 



24. A. christyatmm. 



25. A. Ellisii var. occi- 



dentale. 



26. A. Thomsoni. 



27. A. QiryamcB. 



28. A. eichUrianum. 



29. A. schoellerianiim. 



30. A. imhricatum. 



