42 FLORA OF MADRAS. [Niebuhria. 



Dry forest tracts in Kistna, Kurnool and Cuddapah, also in 



Tinnevelly. 



The wood is divided by bark tissue into concentric sometimes 



anastomozing layers. Vern. Tarn. Iruvalli. 



4. Maerua, Forsk. 



Climbing shrubs. Leaves simple. Flowers corymbose. Calyx- 

 tube lined by the disk, with 4 valvate lobes. Petals 4, inserted on 

 the edge of the disk, ovate, smaller than the calyx-lobes. Stamens 

 many, inserted high up on the gynophore. Ovary long-stalked, 

 1-celled or becoming 2-celled by the cohesion of the placentas ; 

 ovules many, on 2-4 parietal placentas. Berry fleshy, elongate, 

 moniliforrn, 1- or more-seeded. Cotyledons fleshy, involute. 



MAERUA ARENARIA, Hook. f. & Thorns. ; F. B. I. i. 171. Niebuhria 

 oblongifolia, DC. ; W. & A. 23. 



A large woody climber with terminal corymbs of greenish- 

 yellow flowers. Leaves simple and entire, varying from 

 broadly ovate to oblong and from acute to retuse. 

 Deccan and Carnatic Districts from Godavari southwards. 

 The wood is in concentric layers as in Niebuhria. 



5. Cadaba, Forsk. 



Rigid wiry unarmed shrubs. Leaves simple or 3-foliolate. 

 Floivers solitary, corymbose or racemed. Sepals 4, unequal, in 

 2 whorls, outer 2 valvate. Petals 4 or 2, clawed, hypogynous. 

 Disk large, coloured, encircling the gynophore with its tubular 

 stalk and expanded trumpet-wise at the top or spathulate. 

 Stamens 4-6, inserted unilaterally on the slender gynophore. 

 Ovary 1-celled ; stigma sessile ; ovules many, on 2-4 parietal 

 placentas. Fruit a fleshy slender cylindric berry or sometimes 

 dehiscing ultimately by two valves which fall away from the 

 placentas. Seeds globose ; testa horny ; cotyledons convolute. 



Leaves trifoliolate ; petals 2, pure white with yellowish veins ; disk limb 



bright yellow ; stamens 6; fruit 2-4 in. long, dehiscent 1. trifoliata. 



Leaves simple ; petals 4, greenish white ; stamens 4 ; fruit 1-1*5 in. 

 long, eventually dehiscing 2. indica. 



1. CADABA TRIFOLIATA, W. & A. 24 ; F. B. I. i. 172. 



E. Ghat forests of Nellore, Cuddapah and Kurnool ; also in 

 Coimbatore, S. Arcot and Tinnevelly. 



