98 T). Prain — Some additional species of Convohmlacese. [No. 2, 



genuine 4-celled Argyreia. The flowers a good deal resemble those of Ipomoea stapJiylina, 

 ■which has, however, longer, many-fld. corymbs, a dehiscent capsule and hairy seeds. 



15 h. Lbttsomia Mastersii Prain ; leaves large ovate-cordate acute 

 or acuminate, sparsely hirsute above densely or sparsely softly grey 

 tomentose beneath, heads of iiiany-fld. dense dichotomons cymes sliortly 

 peduncled axillary, bracts long ligulate or lanceolate persistent. Argy- 

 reia Mastersii Prain Mss. 



Assam: ISTaga Hills, Masters! Collett ! Garo Hills, King's Collectors! 

 Burma : Chin Hills, Kincjs Collectors ! 



An extensive climber, stems, petioles and pednncles densely rusty-tomentose. 

 Leaves 4-10 in. by 24—7 in., towards ends of branches with base sometimes truncate 

 not cordate ; petiole f-1 in. Peduncle ^-f in., bracts very many outer ligulate 

 1 j-l| in. long, K~^ iQ- wide throughout, sometimes one or two foliaceous near base 

 of cyme, sparsely hirsute above densely tomentose beneath, and with longer 

 spreading hairs along margins ; inner lanceolate covered externally with spreading 

 hairs. Sepals ovate acuminate, 4 in. (in fruit f in.) long, \ in. across, glabrous within, 

 clothed with long spreading hairs externally, iirnaly coriaceous. Corolla (expanded 

 not seen) in bud externally hirsute. Berry ovoid, J in. long ^ in. diam., dark-purple 

 completely hidden within the conniving sepals. 



A very distinct species, nearest to L. barhata, but with larger bracts, moi'e open 

 heads and a very different calyx. The flower is reported (by a native collector, 

 of the Chin Hill specimens) to be yellow. 



Sub-genus 2. Moorcroftta. 



16 h. Lettsomia Sco rtechinii PrfuM; leaves petioled ovate-acute 

 glabrous above, very sparsely hirsute with rusty liairs beneath, pe- 

 duncles long, bi'acts deciduous, corymbs few-fld., sepals orbicular minute- 

 1}' adpressed grey-tomentose externally. Argyreia Scortechinii Prain 

 Mss. 



Malay Peninsula : Perak, Scortechini ! 



A strong climber ; branches and peduncles rusty brown. Leaves 2-3 in. by 1-3 

 in., very thick, base rounded ; petiole 4-f in. minutely rusty pubescent. Peduncles 

 2-5 in., corymbs 3-5-fld. ; bracts caducous before the flowers expand. Sepals 

 \ in., in fruit ^ in., the inner pair larger than the three outer. Cwolla f in. densely 

 fulvous strigose outside. Fruit sub-spherical, 4 in. diam., tip slightly umbonate, 

 smooth, nearly dry, lower f ths closely embraced by the calyx. 



Closely related to L. rubicunda, but with fewer-fld. cymes, rather smaller corolla 

 and fruit, somewhat different calyx, and very different leaves and tomentum. 



16 c. Lettsomia Ridleyi Prain ; leaves large elliptic acuminate 

 quite glabrous above tomentose especially on the nerves beneath, 

 peduncles usually short, cymes sub-capitate surrounded by large ovate 

 acute foliaceous persistent bracts, sepals sub-equal ovate lanceolate ashy- 

 pubescent externally. Argyreia Ridleyi Prain Mss. 



VAR. typica ; leaves rather larger, 5| by 3| in., outline regularly 



