3838 111. POLYGONACE. 
. 7 17. Polygonum (§ Liniaria ?) cynanchoides, Hemsl., n. sp. 
Herba perennis ? volubilis, caulibus elongatis tenuiuseulis tere- 
tibus retrorsim hispidulo-pilosis. Folia longe petiolata, papy- 
racea, mollia, ferrugineo-pubescentia, late hastato-cordata, cir- 
cumscriptione suborbicularia, usque ad 23 poll. diametro, abrupte 
acuteque acuminata, lobis basilaribus etiam sæpius breviter acu- 
minatis, supra parce strigillosa, subtus dense pubescentia, venis 
immersis inconspicuis; petiolus graciliusculus subteres, sæpius 
circiter pollicaris, retrorsim hispidulo-pilosus; ochresx parve, 
inconspicuæ, arcte appressæ, breviter acuminate vel fere trun- 
cate? Flores minimi (bene evoluti non visi), glabri, laxe race- 
mosso-spieati vel anguste paniculati, pedunculo axillari elongato 
gracili; perianthii segmenta 5, orbiculari-concava; stamina 8; 
stylus brevissime trifidus. Nux glabra, trigona ? 
Hurrun: Kuei (A. Henry!) Herb. Kew. 
Very distinct in its twining habit, with soft, hairy, broadly 
cordate-hastate almost tricaudate leaves and slender inflorescence. 
In foliage and habit it strongly resembles some asclepiads, 
especially the genus Cynanchum. 
4 18. Polygonum (§ Echinocaulon) dissitiflorum, Hemsl., n. sp. 
Herba annua, ramosa, suberecta vel ad plantas alias incumbens, 
caulibus flexuosis 2-8 pedalibus infra inflorescentiam levibus vel 
parcissime aculeolatis ad nodos incrassatis. Folia omnia distincte 
petiolata, membranacea, oblongo-cordata vel hastata, cum petiolo 
4-5 poll. longa, acute aeuminata, ciliata, vix hispidula, subtus 
secus costam parce setulosa, petiolo gracili circiter pollicari plus 
minusve setosi; ochrez scariosm, late, oblique, apertz, apice 
paucisetose. Flores parvi (sesquilineam circiter longi), glabri, 
laxissime paniculati distantes (ramulis circiter pollicaribus ssepius 
trifloris), bracteis setoso-ciliatis suffulti, panicularum ramulis 
graciliusculis divaricatis dense glanduloso-setulosis vel fere gla- 
bris; perianthii 5-fidi segmenta obovato-spathulata, persistentia, 
nucem involventia; stamina 8. Nua glabra, nitida, spheroidea, 
simul obscure trigona, embryo fere rectus, radicula crassa quam 
cotyledones longiore. 
SHINGKING: without locality (Ross!); CmukkiaNG: Ningpo 
mountains (Faber!). Herb. Kew. i 
Near P. arifolium, Linn., but readily distinguished from that 
and all the rest of the section having similar foliage by the 
scattered not capitate flowers. 
