Lettsomia.~\ ci. CONVOLVULACE^E. (C. B. Clarke.) 195 



petioled. Calyx very small for the flower. Corolla, 2|-3 in., widely tubular-funnel- 

 shaped, nearly glabrous without, purple. Stamens included ; anthers not twisted. 

 Ovary 2- celled; stigmas 2, sessile, globose. Fruit not seen, hence this maybe an 

 Ipomcea ; but the large long-petioled leaves and large wide-tubed corollas indicate 

 rather Lettsomia. This resembles L. elliptica, Wight, which has smaller flowers, more 

 numerous in the corymbs. 



14. Zi. rubens, Clarke ; leaves ovate-cordate shortly acuminate sparingly 

 hairy beneath, peduncles long 1-5-fld., bracts caducous, sepals widely elliptic 

 obtuse sparsely softly hairy. Convolvulus rubens, Watt. Cat. 1421. Ipomaea 

 rubens, Chois. Convolv. Or. 81, and in DC. Prodr. ix. 371, var. a. 



ASSAM ; Goalpara, Wallich. BENGAL ; Silhet, Wallich, H. f.$ T. ; Cachar, 

 Keen an. 



Scandent ; stems sparsely softly hairy. Leaves 4 by 3 in., somewhat deeply 

 cordate ; petiole 2-3 in. Peduncles 2-4 in. ; bracts deciduous before the flowers 

 expand; pedicels ^-f in. Sepals ^-^ in. Corolla 1^-2 in., widely tubular-funnel- 

 shaped, softly silky without on the plaits, at least when young, rose-purple. Ovary 

 2-celled ; stigmas 2, sessile, globose. Fruit not seen. From the habit and few- 

 flowered peduncles, this has been supposed a Eivea ; but the ovary is 2-celled. The 

 var. lanata, Choisy, is founded on Convolvulus glandulosus, Ham. in Wall. Cat. 2252, 

 collected in Lower Assam. This plant is not now in Wallich's herbarium, but from 

 the description it may have been Argyreia Roxburahii, Choisy. 



15. Zi. barbata, Clarke ; leaves oblong acuminate or elongate-lanceolate 

 shining fulvous-silky beneath, heads few-fld. subsessile, bracts 1 in. filiform 

 persistent. Convolvulus barbatus, Wall. Cat. 1391, and PL As. Rar. ii. 45, t. 

 155. Ipomsea barbata, Chois. Convolv. Or. 76, and in DC. Prodr. ix. 366, not 

 of Roth. 



PEGU ; Wallich. TENASSERIM ; Heifer ; Mergui, Griffith. 



Scandent, stems with bright long fulvous hairs ; innovations densely silky. 

 Leaves in Wallich's type oblong or subelliptic acute (in numerous other examples very 

 narrow, 7 by 1'i in.), sparsely or densely fulvous-hairy beneath, sparingly hairy 

 above ; petiole ^-^ in. Peduncle 0- in. ; bracts numerous, scarcely ^ in. broad, 

 fulvous-hirsute. Sepals ^ in., elliptic-lanceolate, in fruit ovate. Corolla lj in., 

 widely tubular-campanulate, pale rose-coloured, glabrous without. Berry ^ in. diam. ; 

 depressed-globose, reddish, usually 4 2-seeded. 



SUBGEITUS 2. IVToorcroltia. Fruit 1- rarely 2-seeded. 



16. la. rubicunda, Clarke ; leaves large elliptic shortly acute fuscous- 

 villous beneath, peduncles long, bracts deciduous, corymbs compound open, 

 sepals round obtuse fuscous-woolly. Convolvulus rubicundus, Wall. Cat. 1409. 

 Argyreia rubicunda, Chois. Convolv. Or. 44, and in DC. Prodr. ix. 333. 

 Argyreia n. 26, Herb. Ind. Or. H. f. $ T. 



MALACCA ; Griffith, Maingau. DISTRIB. Ava. 



A powerful climber; stems fulvous-villous. Leaves 6 by 4 in., base rounded, in 

 age glabrate above, thick; petiole 1-2 in. Peduncles 3-7 in., fulvous-lanate ; corymbs 

 2-6 in. diam., many-fld. ; bracts caducous before the flowers expand. Sepals i in., in 

 fruit ^ in., inner somewhat smaller. Corolla % in., densely fulvous-hirsute without. 

 Fruit f by - in., ellipsoid, obtuse, smooth, nearly dry, lower half closely embraced 

 by the calyx. ' 



17. Zi. TOaingayi, Clarke-, leaves large elliptic acute glabrescent, 

 heads large subsessile, bracts large ovate-lanceolate persistent, sepals linear- 

 lanceolate. 



MALAY PENINSULA, Griffith ; Malacca, Maingay. 



A large climber ; branches stout, sparsely patently hairy. Leaves 6| by 3| in., 



o 2 



