Tas, 7544, 
POLYGONUM Batpscuvanicum. 
Native of Bokhara. 
Nat. Ord. Potyeonacea.—Tribe Eupotygonem. 
Genus Potyconum, Linn. ; (Benth. & Hook. f. Gen. Plant. vol. iii. p. 97.) 
Potyeonum (Tiniaria) baldschuanicum; fratex volubilis, foliis inferioribus 
oppositis longe petiolatis ovato-hastatis cordatisve acutis obtusis acumi- 
natisve obsolete crenulatis marginibus scaberulis, ochreis brevissimis cito 
evanidis, foliis supremis minoribus angustioribus, paniculis axillaribus et 
terminalibus folia superantibus laxe ramosis, rachi angulata, bracteis 
minutis, floribus roseis subsolitariis fasciculatisve, pedicellis gracilibus 
supra basin articulatis, sepalis hyalinis 3 exterioribus ovatis, petalis dorso 
_ alatis, alis in pedicellum apicem versus trialatum decurrentibus, 2 interio- 
ribus subobovatis suberectis exalatis, staminibus 8, filamentis liberis basi 
pilosis, glandulis perigynis 0, stigmate sessile magno capitato 3-lobo, 
calyce fructifero paullo ancto late 3-alato, alis subundulatis, achznio 
triquetro nigro nitido, cotyledonibus accumbentibus. 
P. baldschuanicum, Regel in Act. Hort. Petrop. vol. viii. (1884) p. 684, t. 10, 
et Descr. Plant. Nov. Reg. Turkest. fase. ix. p. 44, t. 10. H. Zabel in 
Garten-flora, vol. xxxvi. (1888) p. 409, t. 1278. LZ. Henry in Le Jardin, 
vol. ix. (1895) p. 231, cum ic. 
A very beautiful hardy climber, belonging to the same 
section of Polygonum as the notorious pest of cultivated 
grounds, P. Convolvulus, L., but differmg from it in the 
perennial stem, colour of the flowers, and broadly winged 
fruiting perianth. It is much more nearly allied to the 
Chineseand Japanese P. multiflorum, Thunb., which ischiefly 
distinguished by its tuberous rootstock, armed stems, and 
much smaller flowers. P. baldschuanicum is one of the 
many discoveries of Albert Regel, who found it in 1883 
on the banks of the River Wachsch, at the Eastern foot of 
Mt. Sevistan in Bokhara at an elevation of 1200-1700 ft. 
The specimen figured is from a plant six feet high, raised 
in the Royal Gardens, Kew, from seeds sent from the 
Imperial Botanical Garden of St. Petersburgh, which 
flowered in September, 1896. : 
Deser.—Stem very slender, woody, branched, scandent, 
up to twenty feet high, half an inch in diameter at the 
base ; bark pale, lenticellate. Leaves long-petioled, ovate- 
Juty Ist, 1897. 
