ATER A A REP e 
Polygonum. ] CXIX. POLYGONACEÆ®. (J. D. Hooker.) 39 
non atriplicifolium, both from the number of Wallich’s, which he quotes (1719), and ° 
from the length of the petiole (6-8 lines).— Don's publication of Posumbu and Blume's 
of cespitosum are contemporaneous. 
96. P. Hydropiper, Linn.; Boiss. Fl. Orient. iv. 1029; glabrous, 
rather robust, stem erect or ascending branched, leaves subsessile or petioled 
lanceolate or oblong-lanceolate glabrous or with the costa scabrid beneath, 
stipules glabrous or sparsely strigose very shortly ciliate, racemes filiform 
decurved interrupted, bracts glabrous glandular or not mouth naked or 
minutely ciliate, perianth very glandular pink, nut usually trigonous 
Opaque granulate. Meissn. in DC. Prodr. xiv. 1. 109 ; Fl. Dan. t. 1376; 
Reichb. Ic. Crit. v. t. 494. P. mite, Wall. Cat. 1791 F, H. 
Plains and hills of. Inpra, in wet places, from AssaM, SILHET, CHITTAGONG 
and BENGAL to N.W. INDIA; ascending the Kuasta Mrs. to 5000 ft., and the 
Hrwanaya to 7000 ft. Mapmas (coll. @.  Thomson).—Distr1B. Westward to 
Europe and N. Africa, Temperate and Subtropical Asia, Java, N. America, 
Australia, 
Annual, roots tufted or shortly creeping ; stems and branches rather stout, leafy, 
12-18 in. high, always glabrous, often glandular, nodes often swollen. Leaves rarely 
more than 3 in. long, very variable in width and in the length of the apex, usually 
Covered with impressed glands; stipules glabrous, or with scattered erect appressed 
hairs that are sunk in the tissue of the stipule. Racemes flexuous, leafy at the base ; 
bracts variable as to ciliation, which is always short, usually broader than in P. 
Jlaccidum ; perianth pinkish. Nué sometimes flat, finely granular.—I cannot dis- 
tinguish this from the European P. Hydropiper, though the cilia of the stipules are 
often longer and the nut smaller. Hamilton in a note upon his specimen (under the 
name of flaccidum), says that Roxburgh desired that it should bear the name of 
Pani-maricha, i.e. water-pepper. The Eastern specimens have more commonly a 
Scabrid costa (which, however, varies in amount to total absence), and have more 
often sunk hairs in the stipules. I find these latter in European specimens; in 
Which also I find occasional cilia on the bracts, but never a scabrid costa to the leaf. 
It is the P. barbatum of Roxb., according to a specimen in Herb. Wallich, but not of 
the “ Flora Indica." Zollinger's No. 95 from Java is identical with the Indian plant. 
The long cilia of the more glabrous stipules, shorter racemes and more crowded 
flowers distinguish this from P. flaccidum. . 
Var. ? eglandulosa ; perianth eglandular, nut compressed.— Western Himalaya, 
dgeworth; Kunawur, Jamu and Ladak, Zhomson.—But for the more drooping 
Tacemes and smaller pink flowers this would be P. mite, L., to which I was inclined 
to refer it, but Mr. Baker regards it as a form of Hydropiper. 
37. P. flaccidum, Meissn. in DC. Prodr. xiv. 1. 107, in part, excl. 
syn. (not of Roxburgh); glabrous or pubescent, stem erect or ascending 
simple or branched, leaves usually petioled lanceolate or elliptic-lanceolate 
acuminate, stipules strigose or hirsute, cilia half as long as the tube or 
onger, racemes very long filiform decurved, bracts usually very distant 
glabrous glandular, mouth ciliate, nut trigonous rarely compressed opum 
anulate. Boiss. Fl. Orient. iv. 1029, excl. syn. Donii.. 
orb. Fl. Ind. ii. 989 (not of Willd.). P.Posumbu, Thwaites Enum. 2D. 
P. tenellum, Roxb. Fl. Ind. ii, 289. P. Doni Wight Ze. t. 1801. T. 
mite ?, Wall. Cat. 1721/2, 3, D, 1723/1 b, C. P. Rottleri, Hoth Nov. 
Sp. 205. P. rivulare, Herb. Helf. (ew Meissn.). P. asperulum, Wall. 
mss. P. Bisculatium, Herb. Ham. P. ciliatum, Jc. Roxb. 
Common throughout Inpra in wet places, ascending the Himalaya to 4000 ft., 
and extending to Ceyrox and Mazacca.—DisTRIB. Malay Archipelago. —. 1 
sg ually a much taller, longer and larger leaved species than P. Hydropiper, an 
‘ring in other characters indicated under that plant. 
9f perennial?, shortly creeping ; stems 2-3 ft., usually erect and slender 
