RUBIACE.E. 193 



a cap at the top. Calyx-teeth four with one larger. 

 Corolla lobes four, valvate in bud. Stamens four, longer 

 or shorter. Style two-cleft at the stigmas, shorter or 

 longer. Fruit of two one-seeded parts, more or less 

 united, separating or not. 



Species about lo in India, Malaya and Australia. 



Leaves about twice as long as broad, ovate-acute . K. mollis. 



Leaves lanceolate-acuminate, three times as long as broad 



(probably occurs only at lower levels) . . . K. corymbosa. 



Leaves lanceolate, six times as long as broad . K. wightiana. 



Knoxia mollis Wight and Arnott ; F.B.I, iii 129, LXI 2. 

 Stem I to 4 feet, four-angled, very or slightly pubescent. 

 Leaf-stalks '% to % inch: blade 1%. to 2j^ inches by 

 J^ to 1 54 inches, ovate or elliptic ovate, acute, densely 

 pubescent on the upper and nerves of the lower side : 

 stipular bristles 54 to J^ inch. Corymbs 2 to 3 inches, 

 pubescent. Calyx-tube 1/16 inch; teeth triangular, 

 shorter one often slightly larger. Corolla tube % to % 

 inch : lobes 5^ inch. Fruit ellipsoid ; the two halves 

 connate and attached to the central columella, t. 141. 

 Occurs in two fairly distinct forms — 



* by road-sides, I to 2 feet, corymbs open. 



^^ in damp soil on the sides of sholas, 3 to 4 feet, 

 leaves and flowers larger in every way : corymbs close 

 down on the top leaves, t. 141. 



Pulneys : on the downs common. Nilgiris. Fyson 198, 

 1835, 1836, 2134, 3050. Bourne 444, 982. 



Mrs. Evershed tells me that this plant is the food-plant of 

 a velvety black Chaerocarpa (Hawk-moth) caterpillar. The 

 flowers have long or short stamens, cf. under oxalis /». 55. 



Knoxia wightiana Wall, Cat. 6184!; F.B.I. iii 129, 

 XXI 4. Rootstock stout and woody. Stems slender, 

 four-angled glabrous. Leaves narrow, lanceolate, obtuse 

 or oblong, narrowed to the base, 2 to 3 by J4 to ^ inch, 

 often folded along the midrib and recurved : stipular 

 13 



