189G.] D. Praiii — Lit?i«7i Coiivolvuliicciw 537 



A creeper 40-GO feet long with stems 1-3 iu, in diam. Leaves 3-4 in. by H in., 

 dark green above dark brownish- black beneath as are the branches; latenil norv.'s 

 5 pairs oblique, secondary veins not visible. Panicles 3-6 in. long, ^ in. wide, pedun- 

 cles of individual cymes 5 in. or less, pedicels short, bracceoles linear decidiiona. 

 Sepals rusty pubescent, orbicular. Corolla-lobes apparently white, interlobul.ir 

 portion brown tomentose externally, lobules ovate margins subentire. Friiit not 

 seen. 



This species is very distinct from any of the others by reason of the black 

 tomentuni on the leaves beneath. 



2. RIVEA Choisy. 



1. RrvEA ORNATA Clioisy. 



VAR. Griffithii Clarke. 



Further large suites of this very distinct variety [i.e., of Dr. Roxburgh's 

 original Leifsomia ornata) have been brought to Calcutta from the Duars by Mr. 

 Haines. These make it more probable than ever that Roxburgli's plant is specifically 

 distinct from Convolvulus candicaiis Roth. Mr. Haines has demonstrated that the 

 plant is quite common in the Sub- Himalayan region far to the East of the Sivoke 

 Sal Forest and that it extends at least as far as the Assam Frontier. 



More interesting still is the fact that, since the previous paper was written. 

 Dr. King's native collectors have sent large suites of specimens from, and report 

 the plant to be quite common in, the Sonthei'n Shan States. From no part of its 

 wide area, (from the Sivaliks to the Shan Hills) come any specimens showing 

 ,the slightest tendency to connect Roxburgh's plant with Roth's one from Southern 

 India. 



5. TPOMCEA Linn. 



. 216. Ipom(EA SCINDIGA Stapf, Decades Keioenses ix, n. 87 in Kew 

 .BiiZZe^w, September 1894,846; hairy, leaves triangnlai'-has( ate acute 

 or acuminate, cymes few-fld. often reduced to 1-2 flowers, axillary sliort- 

 peduncled, bracts short linear or linear-subulate, corolla small funnel- 

 shaped, capsule globose glabrous, seeds thinly grey- velvety. 

 SciNDE : Cooke ! 

 Stems prostrate slender hispid. Leaves l-2\ in. long, glabrescent above, hirsute 

 but at length also glabrescent beneath ; petiole \-l in. Peduncles } in., sepals 

 \ in., in frait i in, long. Corolla ^ in. long. Capsule i in. long. 



Nearly related to I. eriocarpa but with glabrous in place of hairy capsules atid 

 hairy in place of glabrous seeds ; also to I. Stocksii but with different hairs on 

 seeds and with very different leaves. 



6. LEPISTEMON Blume. 



2. LiTPiSTEMON LEIOCALYX Stapf, Decades Kciuenses xviii, n. 172 in 

 Kew Bulletin, May 1895, 113; tawny-hirsute, leaves ovate-cordate 

 acuminate entire or casually obscurely 3-lobc(l, cymes congested umbel- 

 late, sepals uvatu-rotund quite glabrous, corolla uicculatc. 



