toothed at the apex, 17 



Leaves without a pustule or mark at their base on the 



upper side. 18 



17, Leaves tapering from the base to an acute aroint, and 



the pairs more or less crossing one another; corolla 2i 

 inches in diameter; stigmas 8. 7, ^almii 



Leaves strar -sharped, with parallel sides and an inch or 

 more broad, arranged in two ranks; corolla 3-4 inches in 

 diameter; stigmas 9, 18, grandiflorum 



18, Leaf-nairs obliouely crossing one another, 1^-3* inches 



long and 5-9 lines broad, yellov/ish-green or light green, 

 pellucid-dotted; stigmas 8-10, 19 



Leaves arranged more or less in two ranks and except in 



8, G. liirlothli, grass-green and. not pellucid-dotted, 20 



19, Leaves tapering to the apex and ell of some of them tipped 



with a short whitish or reddish point or mucro, 



9, praepingue 



Leaves not tapering to the apex nor tipped with a short 



point or mucro; stigmas 8-2 13, taurinum 



Leat'es very obtuse or obliouely rounded at the apex, sone- 

 times with a minute point at the end of the straight or 

 slightly hooked upper edge; stigmas 6-8, 20, cornosum. 



20, Leaves up curved and one or both of a pair distinctly 



hooked edgeways or by a slight twist at the apex (see 

 also 22, G. depressum, in v/hich the leaves are some- 

 tinies hooked at the tips); stigmas 8-9 21 



Leaves obtuse or rounded and not or but slightly upcurved 

 edgeways and not forming a distinct hooke at the apex, 

 but with or without a small point or mucro at the end 

 of the upper edge; stigmas 7-8. 22 



21, Leaves strongly upcurved-hooked edgev/ays at the epex and 



the large hook acute or sometimes obliquely truncate, 

 3-4.-i^ inches long and 10-12 lines broad, the larger leaf 

 of each pair with an impression of the smaller leaf 

 upon it, forming a ridge along the margin at the middle 

 p?rt and sn oblique ridge belovi' the apex; corolla 3-3* 

 inches in diameter; petals obtuse and usually minutely 

 toothed; stigmas 8. 19, i-uirii 



Leaves uncurved edgeways or by a slight twist and slightly 

 hooked at the apex, 2^-4 inches long and 6-7 lines broad 

 at the middle, directed forwards and more or less de- 

 flexed, without a ridge along the margin at on the face; 

 corolla 2i inches in diameter; -^etals obtusely pointed 

 or notched at the apex; stigmas 9, 15, proclive 



22, Leaves, in summer, opaque greyish-green or chalky green. 



