CIV. POLYGON ACEvE. 511 



down ; segments obovate, c-uneate. Ovary tuberculate ; styles 4, 

 slightly connate at the base ; stigmas capitate. Nucleus of the fruit 

 5-g in. long, oblong, densely clothed with uumei'ous branched reddish- 

 brown bristles dilated at the base. Fl. B. J. v. 5, p. 22 ; Talb. Trees, 

 Bomb. ed. 2, p. 276; AVoodr. in Journ. Bomb. Nat. v. 12 (1899) 

 p. 365 ; Watt, Diet. Econ. Prod. v. 2, p. 27.— Flowers : Apr.-May. 



In the Bombay Presidency confined to Sind. Sixd : Sfoci'sl, Woodrow; Boogta 

 hills, Vicary ! — Distrib. India (Panjab, Rajputana) ; Persia, Armenia, Syria. 



2. PTEROPYRUM, Jaub. & Spach. 



Rigid shrubs with twiggy branches. Leaves small, alternate or 

 fascicled, linear or spathulate ; stipules very short or obsolete. Flowers 

 small, hermaphrodite, ocreate; pedicels filiform; bracteoles 0. Perianth 

 5-partite ; segments subequal. Stamens 8 ; filaments filiform, attached 

 to a pilose ring; anthers oblong. Ovary 3-gonous, acuminate; styles 3; 

 stigmas capitate. Nut broadly S-winged, beaked. Seed beaked, base 

 broad ; embryo eccentric, slightly curved ; cotyledons oblong, much 

 shorter than the radicle. — Distbib. Western Asia ; species 5 or 6. 



1. Pteropyrum Oliverii, Jauh. c|- Spcicli, Illustr. PL Orient, v. 2 

 (1844) p. 9, 1. 108. A much-branched glabrous shrub ; branches twiggy 

 with white bark. Leaves \~^ by yjj-^ in., spathulate-oblong, entire, 

 fascicled, nerveless, the young ones often with revohite margins ; 

 petioles short, filiform ; stipules thinly membranous, appressed to the 

 branch, truncate, produced at one or both sides into a triangular ap- 

 pendage. Flowers in many-flowered fascicles ; pedicels filiform, arti- 

 culated below the middle. Perianth pink-colored ; segments connate at 

 the base into a short tube, the 3 inner segments the largest, obovate- 

 oblong. Stamens 8, of which the 5 shorter are alternate with the 

 perianth-segments, the other 3 opposite the larger inner segments ; 

 filaments inserted on a hairy ring; anthers oblong, versatile. Fruit 

 3-winged, but appearing to be 6-winged owing to the twist received at 

 the neck by which the upper halves of the wings become alternate with 

 the lower. Fl. B. I. v. 5, p. 23 ; Wight, Icon. t. 1809 ; Talb. Trees, 

 Bomb. ed. 2, p. 276 ; Woodr. in Journ. Bomb. Nat. v. 12 (1899) p. 365. 

 Atraphaxis sj)., Aitch. Pb. & Sind PI. p. 125. Qihsonia eonferta, 

 Stocks, MS.— Flowers : Oct. 



Sind : Heart/ !, Stocks ! ; Laki, Woodrow. — Distrib. Persia, Afghanistan. 



3. POLYGONUM, Linn. 



Herbs (rarely shrubs), usually erect. Leaves aUernate ; stipules 

 membranous, connate into a tubular ocrea. Flowers hermaphrodite, 

 small or minute, axillary or terminal, the clusters sessile or in spiciform 

 capitate or panicled racemes ; pedicels short, usually jointed under the 

 perianth ; bracts and bracteoles membranous, ocreate. Perianth green 

 or colored, 4-5 (rarely 3)-cleft. Stamens 5-8 (rarely 1-4), perigynous ; 

 filaments filiform, often dilated at the base, or alternate with the lobes 

 of an annular or glandular disk ; anthers 2-celled, the cells distinct, 

 joined by a small connective. Ovary compressed or 3-gonous ; ovule 

 solitary, usually stipitate ; styles 2 or 3, free or slightly connate below ; 



