THE GENUS MAXBTTIA 17 



Floweiiug c^ilyy.-Jptfts 3 mm- ^ong at most. 

 Stipular pUeath fringed with 6 or more 



. unequal setiB, early deliexed 33. thymnophora. 



Stipular sheath oever fimbriate. 

 Leaves very narrow-lanceolate, caudate- 

 acuminate ; stipules with setose inter- 



petiolar aristaj 51. meridensis. 



Leaves ovate, or elliptic, or oblong, at 

 narrowest broadly lanceolate. Stipules 

 not aristate. 



Inflorescence very lax, paniculate, -with 

 long slender branches, free of and ex- 

 ceeding the leaves 49. Beyrichiana. 



Inflorescence not manifestly lax, the 

 flowers mixed indiscriminately among 

 the leaves. 

 Primary lateral veins closely set, 8 to 



to 9 pairs 43. gabiceoides. 



Primary lateral veins, when visible, dis- 

 tant, rarely more than 5 manifest pairs. 

 Calyx- lobes broadly ovate, sub-rotund, 



with rounded apex 44. Moritziana. 



Calyx-lobes erect in fruit, acicular- 



setaceous 50. tenuis. 



Calyx-lobes usually oblong, or deltoid, 

 apex more or less acute, 

 e. Stipules with a distinct intorpetiolar 

 acuto-acuminate, deltoid, or apiou- 

 late free portion. 



Leaf-veins apparent on lower sur- 

 face, rete manifest ; corolla-tube 

 upwards of 6 mm. 

 Ovary densely pubescent ; calyx- 

 lobea often broadly ovate, sub- 

 obtuse 52. Bangii. 



Ovary glabrous; calyx-lobes narrow, 

 very acute. 

 Leaves Bub-orbicular-ovate, veina 



very prominent beneath 35. Lygiitani. 



Leaves elliptic-lanceolate, veins 



beneath flat to the surface 32. pisij'era. 



Leaf-veins more or less concealed, 

 with no rete apparent between the 

 primary veina. Corolla-tube 5 mm. 

 at most. 

 Leaves minutely puboruloua on both 



sides, margin ciliato 31. Guilleminiana. 



Leaves glabrous, or sometimoa pu- 

 berulous on lower midrib when 

 immature. 



Leaves 4-5 cm. long at moat, dry- 

 ing a light fulvous tint ; petioles 



1-2 mm 27. lygistoides. 



Leaves 5-6 cm. long at least, dry- 

 ing dark brown ; petioles 5 mm. 



or longer 30. Trianee. 



ee. Stipules truncate, with no appa- 

 rent free apical portion. 

 F. Leaf-veins on under surface quite 

 occludf J. 



Leavoa ovate, margins strongly 

 refloxed. 



Journal of Botani', Jan., 1919. [Supplement.] d 



