111. PoLYGONACERX. 347 
Eastern Himalayas, Khasia, Java, and J apan. 
The limits between this, P. flaccidum, Meisn., and P. serrula- 
tum, Leg., are very obscure, and we have not succeeded in 
discriminating the very large number of specimens in the Kew 
Herbarium. 
45. Polygonum pretermissum, Hook. f. Fl. Brit. Ind. v. 
p. 47. | 
Polygonum strigosum, Benth. Fl. Austral. v. p. 268, partim. 
Huren : Ichang and immediate neighbourhood (A. Henry, 
567, 962, 1669, 3659 !). Mus. Brit.; Herb. Kew. 
Eastern India, Ceylon, and Tasmania. 
~ 46. Polygonum (§ Cephalophilon) radicans, Hemsl., n. sp. 
Herba parva, perennis ? procumbens, multicaulis, caulibus 
tenuibus simul subcarnosus 3-6 poll. longis, iuternodiis quam 
folialongioribus lineas 2 pilis retrorsis instructis. Folia dis- 
tincte petiolata, crassa, subcarnosa, cum petiolo 3—4 lineas longa, 
ovata, obtusa, integerrima, primum utrinque, precipue subtus, 
strigillosa, evenosa, costa crassa subtus elevata; ochrex breves, 
lax, subscarioss, strigillose. Flores parvi, circiter 10-12 in 
axillis foliorum superiorum aggregati, breviter vel brevissime 
pedicellati, congesti ; perianthii segmenta 5, subequalia, obovato- 
spatulata, glabra ; stamina bene evoluta non visa ; styli 3, brevis- 
simi. Nux glabra, triquetra vel fere trialata, sessilis. 
SzECHUEN : summit of mount Omei (Faber!). Herb. Kew. 
Not very near any Chinese species, though resembling a 
starved condition of P. nepalense, from which its thick distinctly 
stalked leaves at once distinguish it. P. eriopolitanum, Hance, 
is somewhat similar in habit, but that has long narrow thin 
leaves. 
47. Polygonum runcinatum, Hamilt. in D. Don, Prodr. Fl. 
Nep. p. 73; Meisn. in DC. Prodr. xiv. p. 130; Hook. f. Fl. 
Brit. Ind. v. p. 43: var. sinense, Hemsl. fere glabrum capitulis 
minoribus. 
While we have no hesitation in referring the Chinese speci- 
mens to this species, they present some slight differences, and as 
the specific name is not quite appropriate, we add a description. 
Herba perennis, glabrescens, erecta, multicaulis, caulibus cras- 
siusculis striatis simplicibus usque 3 ped. altis. Folia plus 
minusve distincte petiolata, membranacea, smpius deltoideo- 
