348 lines above them. 14 



2^ Leaves v;ith two teeth or a slight humr on the flat face, 



and not more then 3-4 lines broad at the middle. 3 



Leaves v.'ithout teeth or a humn on the flat face, but of- 

 ten vrith an oblinue or slic'htly hooded ridge or hook 

 at the end or the flat or concave face. 4 



3. Pedicels quadrangular, 3-4 lines long. S, difforme 



349 Pedicels terete or 2-edged, 6-12 lines long. 



3, semicylindricum 



4. Leaves 2 



2-3 lines broad at the middle and the leaf-pairs 

 crossing one another at right-angles; pedicels 1*- 

 2h inches long; calyx 5-lobes (in all other species 4- 

 lobed). 27, ochre cexim 



Leaves mostly 3-6 (but sometimes up to 7) lines broad 

 at the middle, broader at the base, and, except in 10, 

 G. aniculatum, Dellucid-dotted as seen when held against 

 the light, and the leef-nairs more or less obliquely 

 crossing one another. 5 



Leaves 6-12 lines broad at the middle and usually arr- 

 anged in two ranks (except in 5, '^, cruciatum and 23, 

 G. suave, but sometimes even on the same individual 

 the nairs more or less oblicuely cross one another and 

 except in 5, ^. cruciatum, not pellucid-dotted. 9 



5. ^eaves, mostly 3-5 inches long, ascending except when 



old, and of nearly the same breadth throughout, or 

 tapering at the unfer part, the larger of each pair 

 slightly concave on the face; pedicel 9 inches long; 

 corolla 2-2i- inches in diameter. 11, concavum 



Leaves 2-3+ inches long, one leaf of a pair usually more 

 or less recurved and the other erect, incurved or spread- 

 ing, tapering from the base or at the upper part to an 

 acute or blunt point. 6 



6. Petals subacute or obtusely pointed, entire. 7 



Petals obtuse and minutely denticulate at the apex. 8 



7, AT)ex of the larger leaf compressed into an acute edge or 

 keeld; pedicel 1-1-J inch long and 2 inches thick. 



6, longipes 



Ariex of the lare-er leaf beyond the flat face compressed 

 obtusely keeled and bluntly pointed; Dedicel very 

 stout, 9-10 lines long and 3 lines or more thick; stig- 

 mas 8-9. 5, cruciatum 



8, Apex of the larger leaf beyond the flat face compressed- 



subterete, obtusely keeled and bluntly pointed, somewhat 

 nose-like; pedicel about 5-7 lines long and 2 lines 



