. * 



1 



644 



Lxvi. BEGONiACEiE. (C. B. Clarke.) 



[^Begont^' 



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/ 



pubescent on the nerves beneath otherwise glabrous, base very unequal deeply aun- 

 culed on one side ; petiole ^-| in. ; stipules narrow-lanceolate, glabrous, deciduous. 

 Peduncles short, djchotomous, with many rather small white or pale pink flowers ; 

 bracts ovate, acute, deciduous, Male : sepals 2, ovate, subacute, glabrous ; petals Q ; 

 stamens about 40, shortly monadelphous, anthers obovoid, condective not produced. 

 Female: perianth-segments 3, 2 Quter ovate subacute resembling but smaller than 

 the male sepals, inner small lateral ; ovary (at the time of expanding of the flower) 

 completely 2-celled with 2-fid placentas (exactly as in PlaiyceTitrum) ; styles 2-S 

 (sometimes 4, A, DC.) nearly free, or one free the other two combined, sometimes 

 simply branched upwards, often 3-4-fid and more or less contorted,^ Capsule f by 

 1 in. including the wing, styles persistent, oblong, concave upon its narrow fece 

 (between the two very narrow wings), broad wing extending the whole length of 

 the capsule, its upper margin horizontal convex, narrow face first falling ^^7' 

 Seeds ellipsoid. — ^This is the largest Indian Begonia: the description and remarks of 

 Alph. DC. must have been founded upon very imperfect materials. 



.- ' 



26. 



■> 7 



T.- 



. episcopalis, C. B. Clarke ; stem tall much blanched pubescent 

 upwards, peduncles axillary, male sepals 4. Mezierea Griffithiana, -4- •^^' 

 Prodr, XV. pt, i. p. 407. 



Bhotan; Griffith (Kew Distrib. No. 2504, 2573). Khasu Mts., alt. 4000 ft; 

 ff /. & 71, a 5. Clarke. . «1 



Leaves 6 by 1 in., narrow-lanceolate, cordate, toothed, membranous, with scattered 

 pubescence above, very pubescent or almost glabrous on the nerves beneath, base 

 very unequal deeply auricled on one side; petiole ^li in.; stipules f m.. very 

 persistent, lanceolate, subulate, glabrous. Inflorescence often from the middle ana 

 lower axils in short dichotomous peduncles, usually pubescent; bracts oU°°8' 

 lanceolate, glabrous, persistent ; flowers somewhat numerous, rather small. ^^^^'' 

 sepals 2, ovate ; petals ; stamens about 40, shortly monadelphous, anthers obovoia, 

 connective not produced, j ; Female : perianth-segmentfl 4, 2 outer ovate, 2 inner 

 narrow-oblong ; styles 3 or 2, nearly free at the base, divided into long curvea 

 branches. Capsule as in B. gigantea but the upper margin of the larger wing is con- 

 cave and somewhat descending. Seeds short-ellipsoid.— In Griffith's Bhotan ex- 

 amples, the stems upwards peduncles and leaves on both surfaces are very ptobescen^ 

 and the petioles are ^_A in. ; Clarke's examples (from Bishop's Falls,, ShiUong) bF^ 

 very nearly glabrous with the petioles U in. The Kha^ia examples of H. £ & -1. are 

 intermediate. 



r 



B. Female perianth-segments 4-6.— Sect. Plati/centrum, A. DO. 



L 



Connective produced above the anther-ceUs, 



^ 27, B. xanthina, Hook. Bot. Mag. t. 4683 ; leaves large ovate den- 

 ticulate and angular not ciliate-serrate, petiole hairy, cyme and ovary ne^^J 

 glabrous^ flowers yeUow. A. DC. Prodr. xv. pt. i. 347. B. xw^^^^lw 

 pictifoUa, Bot. Mag. t. 5102. B. xanthina, var. Lazuli, Bot. Mag. t. 51U7. 



East Sikkim, alt. 4000-5000 ft. : J. D. H. Dumsonff. Bhotan, alt. ^OQQ ft. i 

 C. B. Clarke. 



Rhizome thick. Stem (in the wild examples) 0. 

 cordate at the base, pubescent on the nerves beneath, otherwise nearly ^^^"'^^^^fng 

 tiole 3-4 in. ; stipules ovate, acute, glabrous or pubescent. Scape 1 ft. .^^'^^f ^^ v^. 

 hairs below, nearly glabrous upwards ; bracts at its first division | m.. ^^^^^|^g ; 

 ceolate, glabrous ; flowers medium large, full yellow (in the wild examples). T^^^ 

 "-pals 2, round; petals 2, elliptic; stamens about 100, shortly monadelpiious,_^^^^ 

 active produced, triangular. Female: perianth-segments 5, outer rouna, .^^ 

 gradually smaller; styles 2. shortly combined below, each dividing h*^^"^yj-fii the 

 two tortuous branches; ovary (in the wild specimens) glabrous. Capsule wi ^^^^ 

 unequal vnng very much elongated, descending, its upper margin '>-^''^ve- ^ 

 cultivated specimens, the stem is elongated and leafy 



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