CO.VBRETACE.E. 477 



extniet, for exportation, is 1-261 ; but, if the condensation is effected by tbc sun's 

 heat, no limit of condensation need be iixed. If gun metal stamps were employed 

 to reduce the materials to powder, they might be wetted, and the inconvenience 

 thereby avoided, usually experienced from the irritating dust created. 



To ascertain the presence of tannin in any wood, bark, leaf or fruit, prepare 

 an infusion, and add thereto a warm solution of gelatine or isinglass : if tannin 

 is present, a white precipitate will be formed, llr. Christy also observes: "Should 

 colonists or any enteiiirising firm bo still uncertain as to tlie value of any tanning 

 material, and bow far it would be wise to convert it into extract, or otherwise, they 

 can obtain more accurate information and the best advice on the subject by forwarding 

 samples to me, and I will report not only as to the amount of tannic acid contained, 

 but how far the material is suitable for the English market, and give advice as to the 

 proper condition in which it should be forwarded." 



CoiiHRKTUM, Linnaus. 



Petals very rarely wanting. Stamens straight in bud. Fluwers usually racemose 

 or panicled. Usually scandent shrubs. 



Sub-genus Poivrea, Comm. 



Flowers 5-merous. Stamens 10, all cijiuil or alternately shorter. Fruits usually 

 5-, rarely 4- or 6- or 8-cornered or winged. 



* Calyx funnel- rup-shaped. 

 X Petals none. 



C. APETAUii, "Wall. T. Ava and Pronie. 



Nabu-nweh (Kurz). 



Leaves only U-3 inches long. Panicles greyish velvety, the floral leaves not 

 discoloured. The native name indicates a ' creeper.' — W.T. 



X X Petals present. 



C. (Poiveea) "RoxBTjKGnn, DC. F.S.S. AU over Bunua up to 3000 feet. 



C. deeandrum, Roxb. 



Tha-ma-ka-nweh. 



Leaves large, opposite. Panicles rusty or tawny tomcntose, the floral leaves 

 white-discoloured. Fruits with 5 chartaceous wings. 



C. TRirouATUM, Vent. F.S.S. Swampy forests all over Burma. 



Terminalia laneifoUa, Grilf. 

 Fmhryogonia lucida, Bl. 

 Leaves often whorlcd by 2-4, smooth, coriaceous. Panicles greyish tomontose, 

 without floral leaves. Fruits with .5 sharp thick almost wing-like corners. 

 C. TETUAGoxocARPUM, Kz. E.S.S. Swanipy forests of Pegu. 



Similar to the preceding, but leaves strongly nerved and net-veined. Fruits 

 sharply 4-cornered. 



*•* Cahjx-tuhe tubular, the limb abruptly salver- or cup-shaped. 

 C. OVALE, R. Br. S. Pegu Range and Hills East of Toung-ngoo. 



Kyettet-nweh (Kurz). iS'on ' rcrum,' fide Clarke, sed C. pilosum var. 

 Kacemcs, petioles, and branchlets greyish or rusty puberulous or velvety. 

 C. PiLosuji, Roxb. W. C. Khakycn Hills, Pegu and Tenasscrim. 



Panicles, petioles, and branchlets aU rusty pilose. Fruits 5-wiaged, puberulous. 

 Sub-genus Combretum, DC. 



Flowers 4-merous. Stamens 8, equal or alternately shorter. Fruits usually 4-, 

 rarely o-wingcd or cornered. 



