48(> LXXYII. COXVOLVULACE.E \LeUsomia 



4. LETTSOMIA, Eoxb. ; M. Brit. Ind. iv. 101. 



Differs from Ar gyve la mainly by a 2-celle(I ovary. Species 32, tropical 

 Africa and Asia. 



A. Stamens exserted; corolla less tlian 1 in. long, limb lobed. 



1. L. aggregata, Eoxb. : Wight Ic. t.^ 1359. Deccan, common in hedges. Burma, 

 Upper and Lower. Cvylon dry legion, very common. A large woody climber, stems 

 fluted, htrneture see Talhot 249. Branches long, as well as under&ide of 1. and inflor- 

 ebcence densely white tomentose, h ovate I'roni a cordate base, blade 8-5, pet. 1-2 in. 

 long. Fh headb bracteate. arranged in long terminal panicles, peduncles grooved, 

 corolla I in. long, very hairy outside. 2. L. mysorensis, Clarke, Mysore. Similar to 1, 

 £. in jWunculate axillary corymbs, bracts deciduous. 3. L. la3dflora, Prain in Journ. 

 As. Soc. Beiig. 63. 92. Upper Burma. Fl. in lax axillary and terminal corymbs or 

 panicles. 4. L. bella, Clarke. Kepal. Chutia Nagpnr, common. Ganjam. Yunnan. 

 L. cordate, 4 in. diam., pet. 2-3 m. long. Fl. in axillarj-^ heads, peduncle^ terete 1-2 in. 

 long. 



B. Stamens included, corolla 1 in. long and longer. 

 (ft) Bracts persistent^ broad, 1 in. long or less. 



5. L. strigosa, Roxb, Sikkim Terai. Assam, valleys of the Ivhasi hills. Plains of 

 Bengal. Chittagong. Andamans. Burma, Upper and Lower. Branchlets, 1. and 

 inflorescence strigose with long soft hairs, 1. ovate wath a cordate or rounded hase, 

 blade 8-4, x)et. 2-4 in. long, ti. in dense axillary bracteate heads, x:)eduncles 2-5 in., 

 bi^acts elliptic-oblong 1 in. long. Nearly allied and perhaps not specifically distinct 

 are: (i. L. peguensis, Clarke, and 7. L, "barMgera, Clarke. 



(6) Bracts persistent, lanceolate or linear, longer tlian 1 in. 



8. L. atropurpurea^ Clarke. Convolvulus afropiirpureus, Wall. PL As. Ear. t. 43. 

 Nepal. Bikkim Terai. L. more or less hairy, ovate-lanceolate, blade 4-6, pet, 1-2 in. 

 Fl. in bracteate heads, peduncles \ in., corolla dark purple, sometimes white, 1^ in. 

 long. 9. L. barbata, Clarke. Convolvulus harhafus^ Wall. PI, As. Har. t. 155. 

 Pegu. Tenasserim. Branchlets, petioles, underside of 1. and inflorescence with long 

 fulvouh hairs, 1. lanceolate, gradually" narrowed from a broad base, blade 5-8, pet. \ in. 

 Heads few-fld., nearly sessile, bracts linear 1 in. long, forming an involucre converging 

 over the flowers, corolla pale yellow and robe-coloured. 10. L. Mastersii, Prain in Journ. 

 As. 8oc. Beng. 63, 98. Garo and Naga hills. Chin hills. L, hairy beneath, ovate, blade 

 4-6; pet. 1-6 in. long, bracts linear, hairy, 1-1.] in. long. 11. L. longifolia, Coll. et 

 Hemsley in Journ. Linn. Soc. xxviii, 95. Shan hills Terai. Slightly strigose, 1. linear- 

 lanceolate, blade Q-S^ jDet. l-l in., bracts lanceolate. 



(c) Bracts deciduous, se]3als densely clothed with long stiff bairs. 



12. L. setosa, Eoxb.; Wight Ic. t. 1360. Mount Abu. Central Provinces. Oudh 

 forests. Chutia Nagpur. Centr. Prov. Western Peninsula. Burma, Upper and 

 Lower. L. more or less strigose, cordate, blade 3-5, pet. 1-3 in. long. PI. rose-coloured, 

 in large cor^-nibs, peduncles strigose, 2-8 in. long, bracts falling when the fl. open. 

 Corolla 1?.~2 in. long, densely' strigose outside. 13. L. Mrsutissima, Clarke. Upper 

 Burma. L. ovate or ovate-lanceolate, on both sides softly strigose, corymbs axillary, 

 peduncles 1-2 in. long. 14. L. Tliomsoni, Clarke. Siwalik hills and Outer Himalaya, 

 from Ivasauli to Sikkim. L. sparsely strigose, fl. rose-purple in few-fld. heads, 

 peduncles 1-3 in. long, bracts spathulate, sometimes persistent. 15. L. confasa, Prain 

 in Journ. As. Soc. Beng. 63, 96. Burma, Upper and Lower. L. sparingly hirsute to 

 nearly glabrous on both surfaces. 



{d) Bracts deciduonSj sepals glabrous or nearly so. 



16. L. elliptica, Wight. Peninsula, chiefly on the West side. Ceylon. L. thin, 

 elliptic, sparsely strigose, blade 3-5, pet. slender •|-2 in. long, sec. n. oblique, 8-10 pair. 

 PL in loose corymbs, peduncles 2-5 in., corolla ij in. long, nearly glabrous outside. 



17, L. slkMmensis, Clarke* Sikkim 3,000 ft. Assam. Khasi and Naga hills. Cachar. 

 Upper Burma. Similar to 16 and possibly not specifically distinct, PL and f r. larger. 



18. L. pallida, Prain, Argyreia ^^ctUida, Choisy. Middle Irawadi valley and foot of 

 Shan hills. L. thin, nearly glabrous, almost orbicular, blade 3-4 in. diam., pet. 1-3 in. 

 long. Corymbs lax, slightly grey-hairy, corolla 1 in. long. 



6. PORANA, Linn, j EL Brit. Ind. iv. 221. 



Twining shrubs or berbs, leaves petiolate, ovate, usually entire. M. purple, 

 wbiteor steel blue, in racemes or large panicles, bracts persistent. Sepals all 



