476 Lxxv. CAMPANtJLACEj: (hemsley). [LightfooUa, 



7. Xi. arenaria, A. DC. in Ann. Sc. Nat. ser. 5, vi. p. 329. An 

 annual with angnlar hairy stems 6-15 in. high. Leaves alternate 

 sessile oblong or lanceolate acute thickened at the margin and hairy 

 along the midrib or the under surface, lower ones 6-7 lines long, the 

 middle and upper ones gradually nan-ower and shorter ; all sparsely 

 hispidly pilose. Inflorescence diffuse many-flowered ; pedicels slender 

 longer than the bracts. Calyx-tube in the flower about a line long, in 

 the fruit nearly 2 lines long ; lobes erect, nearly as long. Lobes of the 

 corolla slender, linear, yellowish violet. Capsule half superior, usually 

 3-celled, occasionally 4-celled. 



Kower Guinea. Huilla, in sandy places, Wehvitsch I 



■ 8. Xi. grracllis, A. DC. in Ann. Sc. Nat. ser. 5, vi. p. 330. A dwarf 

 slender erect annual furnished with a few scattered hispid hairs. 

 Leaves alternate distant narrow-linear, margin thicker, obsoletely 

 toothed, 11-2^ lines long. Flowers deep blue on slender pedicels 

 2-^5 lines long. Calyx-lobes less than half a line long lanceolate 

 hairy at the tip. Lobes of the corolla glabrous, 3 or 4 times as long 

 as the calyx-lobes. Capsule less than a line long, turbinate, 3-celled. — 

 Description after De CandoUe. 



lower Guinea. Huilla, Welwitsch! 



9. Xi. exilis, A. DC. in Ann. Sc. Nat. ser. 5, vi. p. 330. Resembling 

 L. gracilis^ but having broader distinctly toothed leaves, shorter bracts 

 and the calyx-lobes bristly at the tip. 'Lobes of the corolla not irregu- 

 larly spreading after flowering as in Lightfootia, but cohering as in 

 WaUenhergia, Corolla yellow and blue. — Description after De Can- 

 doUe. 



]Lower Guinea. Huilla, Welwitsch! 



10. Xi. debilis, A. DC. in Ami. Sc. Nat. ser. 5, vi. p. 331. An annual 

 with diffuse slender weak slightly pubescent stems 8-10 in. high. 

 Leaves alternate, lower ones elb'ptical, 3— 4?J lines long, obtuse, middle 

 ones linear-oblong and upper ones linear and less than ^ a line long ; 

 all of them distantly denticulate and sparsely pilose. Flowers milk- 

 blue on pedicels about 4 lines long. Calyx-lobes lanceolate hairy at 

 the tips, about ^ a line long ; lobes of the corolla twice as long.— De- 

 scription after De CandoUe. 



Ziower Guinea. Huilla, in moist pastures, Welwitsch ! 



11. Xi. paniculata, A. DC. in Ann. Sc. Nat. ser. 5, vi. p. 331. A 

 glabrescent annual 8-12 in. high, with 3 or 4 slender ascending stems, 

 branching at the base. Leaves alternate, sessile, oblong- lanceolate or 

 linear, margin thicker with a few distant obscure teeth, lower ones 

 crowded, 6-8 lines long, gradually smaller and more distant upwards 

 into linear bi'acts, not more than a line long. Pedicels slender, 

 1-2 lines long. Calyx glabrous ; tube obovoid ; lobes erect lanceolate, 

 less than ^ a line long, obscurely bristly at the tip. Corolla-lobes gla- 



