1801. Polygonum Donu (Meisn.), spikes often 

 paired or paniculate, long filiform flaccid, interrupt- 

 ed ; bracts somewhat remote, bristly, ciliate, one- 

 flowered; pedicels exserted: flowers 8-androus, 3- 

 gynous : seed 3-cornered, smooth dull-brown : calyx 

 5-cleft, the outer lobes glanduliferous : ochreae loose, 

 hairy, long ciliate : leaves lanceolate, oblong acumi- 

 nate, hispidulous beneath, ciliate on the margin : 

 stem ascending, ramous, rooting at the base. 



Neilgherries, on wet ground in woods. 



1802. Polygonum pedukculare (WaUich), spikes 



short, ovate or roundish; peduncles paired, often di- 

 chotomous: bracts muticous; flowers 5-androus, 2- 

 gynous: seed lenticulai', shining, punctuate: ochrea 

 somewhat pointed, beset with bristly hairs at the 

 base : leaves erect, varying from broad ovate to linear 

 lanceolate acute, rough on the margin: petiols about 

 the length of the stipules; stem smooth, rooting at 

 the base. 



!N^eilgherries, frequent in woods in low wet soil. 



This is so variable a plant, that I have been indu- 

 ced to give figiu'es of three sufficiently distinct forms, 

 which I find mixed in my collection of specimens. 



1803. Polygonum horridum (Hamilt), spikes 

 short, compact, cyUndrical, sometimes sub-globose : pe- 

 duncles geminate or dichotomously panicled, divari- 

 cate : bracts ciliatCjAowers 6-7-8-androus, 2-3-gynous : 

 seed lenticular or obsoletely S-corned, faces convex, 

 granulato-punctuate : ochrea bristle ciliate : leaves. 

 lanceolate, cordate, or sagittate at the base, scariose 

 on the margin, middle nerve beneath with the petiol 

 base of the ochrea and stem densely armed with re- 

 trorse bristles. 



Ootacamund, in shallow water, very abundant. In 

 flower at all seasons, but seems very rarely to mature 

 seed. 



1804. P01.YGONUM Nepaminse (Meisn.), heads of 

 flowers supported by the sessile cordate leaves : pe- 

 duncles pau'ed : scariose bracts and ochrea glabrous : 

 flowers 6-androus, 2-gynous : limb of the calyx 4- 

 cleft : seed compressed, §ides convex, prettily netted, 

 scrobiculate : upper leaves sessile, oblong, cordato- 

 stem-clasping ; limb of the lower ones ovate, acmni- 

 nate, decurrent, wing-like on the petiol, stem-clasping 

 at the base ; spai'ingly punctuate beneath, with pel- 

 lucid glands. 



Neilgherries. A very common weed in gardens 

 alx)ut Ootacamund, flowering at all seasons. 



1805. Polygonum Wallichii (Meisn,), heads of 

 flowers paired ; peduncles long filiform, glabrous : 

 bracts scariose, obtuse, pointless : flowers 8-androus, 

 sometimes 6-androus, 3-gynous ; limb of the calyx 

 5-cleft : seed 3-cornered, sides granular : leaves not 

 punctuate, glabrous, or slightly pubescent beneath, 

 somewhat granularly-rough al)ove, ovate, acuminate, 

 or sub-cordate at the base, decurrent on the petiol ; 

 the margin and ochrea shortly ciliate : stem glabrous. 



Neilgherries. 



The points represented on the magnified portion of 

 the leaf are granxilar asperities, not pellucid points. 



1806. Polygonum Chenense (Linn.), flowers 8- 

 androus, 3-gynous : corymbs simple or panicled : 

 peduncles roughish ; furnished with foliaceous cordate 

 bractiols; leaves sub -coriaceous, ovate, or oblong, 

 acuminate, alternate or cordate at the base, more or 



base, with a reniform foliaceous somewhat deciduous 

 appendage : stem glabrous, sufii'uticose, procumbent, 

 extensively diflfiise, or climbing if supported. 



An extensively distributed plant, preferring alpine 

 stations, but not confined to them, being abundant at 

 Courtallum, only some 600 or 700 feet above the 

 sea level. 



The genus Coccoloba is distinguished from Tolygo- 

 num by the fruit, which in the former is baccate, i, e., 

 the calyx enlarges, becomes thickened and pulpy. 

 In this plant it often undergoes that change and 

 becomes of a deep purple or black colour. The 

 first time I found this plant I, in consequence, named 

 it Coccoloba Indica, Meisner, like Linnaeus, from the 

 examination of dried specimens, determined that it 

 was a true Polygonum, and I have here adopted that 

 name, though not prepared to agree with them. This 

 plant in truth forms the connecting link between the 

 two genera, as seed are often matured without the 

 calyx becoming baccate. 



1807. Polygonum molle (Don), panicles very 

 branchy, leafless ; racemes confluent : bracts 3-6- 

 flowered, about the length of the pedicels : smaller 

 segments of the calyx equal, narrow oval, acutish : 

 ochrea equaling or somewhat exceeding the petiol, 

 shorter or about the length of the internode : leaves 

 oblong, lanceolate, shortly acuminate, velvety beneath, 

 glabrescent above : stem finiticose, branchy, and with 

 the branches peduncles and ochrea, pilose. 



Simla, Countess Dalhousie. 



The two lower leaves in the figure are misrepre- 

 sented in the half only being shown villous, a 

 blunder in part attributable to the lithographer who 

 neglected the directions to represent them the same 

 throughout. Errors like these are not easily guarded 

 against while the artist and lithographer are working 

 at so great a distance from each other : the one 

 in Ma^as, the other in Coimbatore, 300 miles apart. 



1808. Polygonum Indicum (Roth.), fascicles axil- 

 lary, 3-6-flowered ; pedicels exserted: flowers 5-6-8- 

 androus : calyx somewhat longer than the pedicel ; 

 lobes acute, diverging, the three exterior ones at 

 length acutely keeled : seed thickened on the angles, 

 sides ovate, shining, obsoletely punctuate, striated 

 towards the apex: ochrea short, lacerated, slightly 

 nerved ; those of the stem evanescent : leaves lanceo- 

 late or linear, longer than the internodes, spreading : 

 stem prostrate, radiatiog, woolly, very ramous. 



A widely distributed and common plant lying flat 

 on the ground, the stipules or ochre^e scariose, the 

 flowers pink. It is variable in form and number of 

 stamens. It seems scarcely distinct from the Euro- 

 pean P. aviculare* 



The specimen figured seems to fluctuate between P. 



hemiarioides and Indicum^ and seems to connect the 



two species, if indeed they be species. 



Ptbboftbum (Jaub. and Spach.). 



Gen. Cuab. Perianth rotate, 5-parted, sub-petaloid, 

 withering; lobes 2 series, unequal; two exterior 

 ones, afterwards reflexed ; interior ones shorter, ad- 

 pressed to the ovary and fruit. Stamens 8, inserted 

 on the throat of the perianth ; 5 shorter, alternate 

 with the lobes, persistent ; anthers versatHe, deciduous, 

 2-celIed. Ovary free, 1 -celled 1-ovuled, 3- winged, 

 contracted at the base and apex ; ovule attached to 



% 



less pellucid, punctuate ; petiols short auricled at the the base of the cell, atropous ; styles 3, persistent ; 



( 7 ) 



