| TIRES TREE NUTS TNR em 
Polygonum.] ^ cxix. poryconacex. (J. D. Hooker.) 41 
gonous or biconvex, enclosed in or adnate to the often enlarged and some- 
times fleshy perianth-tube; cotyledons accumbent. 
39. P. humile, Meissn. in Wall. Pl. As. Rar. iii. 59, and in DC. 
Prodr. xiv. 1. 128; small, sparsely glandular-hairy, stem filiform, leaves 
4 in. subsessile ovate acute or rhombic-ovate, mouth of stipules very 
oblique, heads long peduncled small, bracts very small ovate-lanceolate 
acute, stamens 5-6, nut biconvex striate and punctate. P. perforatum, 
Wall. Cat. 1700, in part. 
TEMPERATE and ALPINE HIMALAYA; Kunawur, Grant; Kumaon, alt. 8500 ft., 
Sey d Winterbottom; Nepal, Wallich; Sikkim, alt. 7-11,000 ft., J. D. H., 
arke, 
Annual Stem 4-6 in., simple and erect or diffusely branched from the base, 
aves very uniform, epunctate, sometimes narrowed into a short broad petiole. 
Heads + in. diam., on long slender pedicels, without an involucral leaf; bracts 
longer than the flowers. Perianth greenish, tube closely investing but not cohering 
with the nut, eglandular ; lobes very short, rounded. Nut black, coarsely punctate ; 
styles slender, connate below, stigmas capitate. 
40. P. glaciale, Hook. f.; dwarf, flaccid, glabrous, subsucculent, 
leaves long-petioled broadly ovate obtuse, heads small sessile or peduncled, 
peduncle minutely glandular at the tip, bracts broadly ovate obtuse gla- 
Prous about equalling the 3-gonous nut. P. perforatum y. glaciale, Meissn, 
mn DC. Prodr, xiv. 1. 128. P. perforatum, Aitchison in Journ. Linn. Soc. 
xvii. 90, 
ALPINE and SuBALPINE HixALAYA; Kashmir, alt. 8400-12,000 ft., Clarke; 
f mawur and Piti, alt. 9000—11,000 ft., Thomson; Kumaon, alt. 13,000 ft., Strachey 
interbottom, &c.— Ty 18TRIB. Affghanistan. : 
Annual, 2-4 n. high, branched from the root, branches diffuse. Leaves Hi a 
nerves indistinct, surfaces minutely granular when dry; petiole as long as the blade, 
Winged above only ; stipules short, cupular, simple or 2-lobed, glabrous. Heads jin. 
wt» Without an involucral leaf. Perianth hyaline; lobes subequal, obtuse: 
tamens b. Nut minute, closely invested by the perianth-tube, black, striolate an 
punctate, —The long petioles at once distinguish this from P. alatum. 
4l. P. alatum, Ham. mss.; Spreng. Syst. Veg., Cur. post. 154; tall, 
tel low and procumbent, glabrous or sparsely hairy, leaves large or 
an involucral leaf, bracts ovate-lanceolate glabrous not ciliate, 
fate anth 1-5-fid., stamens 7-8, nut biconvex or trigonous striate and punc- 
e. 
xviii. 105, 
Rar. i 59, and in DC. Prodr. xiv. 1. 128, evel. y. glaciale; Wall. Cat. 
hp ghout th ; t 4-10,000 ft. elevation, from Sikkim to 
Kashmir, © masm Apa Aya 4 8000 fe NILGHIRI Mrs. (a weed in gardens), 
á a. Canara; Bababudan Hills, Heyne. CEYLON, abundant.— DISTRIB. Affghan- 
, ava, Ja n "me 
iege n Stem me aping for a short distance at the base, erect and sub- 
Pao: 9r branched from the base; branches 6-18 in. high, slender or rather stout, 
Pim cr stiff, erect ascending or prostrate, glabrous or sparsely grandular-hairy. 
bool, the largest specimens 2-3 in. long, and the smallest 4 in., base sene 
rdate, Suddenly contracted into the broadly-winged petiole which is often 
