10« cix. POLYGONACE^ (baker AND wrigut). [Polygonum. 



acuminate at both ends, 3 in. long, 9 lin. wide. Spikes very slender ; lower bracts 

 •distant.- P. I)u7iii, Meisn. Moiiogr. Polyg. 72, excl. syn. 



Mozamb. »l8t. German East Africa : Kilimanjaro, 5000 ft.. Johnston ! 



VVelwitscl), 5371, from marshy places at the Uiver Panda, Huilla, has much 

 broader leaves, and is doubtfully referrable to this species. 



9. P. lapathifolium, sub-sp. maculatum, Dyer d- Trim, in Journ. 

 JJoL 1871, 3G. Annual. Stem glabrous, erect, 2-8 ft. long. Leaves 

 lanceolate, green, glabrous except for some short bristles on the under- 

 side of the midrib ; ochrere short, membranous, not ciliate ; petiole 

 short, with short adpressed bristles. Racemes cylindrical, not very 

 dense, li-2 in. long, several to a stem; peduncles slender, rough with 

 glands ; "bracts orbicular, not ciliate. Perianth pale pink, glandular, 

 1 lin. long. Styles 2. Nut lenticular, orbicular, black, shining, 

 nearly as long as the perianth. — Persicaria viaculata, S. F. Gray, Nat. 

 Arr. Brit. PL ii. 270. 



Mozamb. Dlst. Portun:uese East Africa : lower valley of the River Shire, 

 Melier ! 



Also in South Africa and the North Temperate Zone. I have not seen var. 

 vestitum, Schuster (in Bull. Herh. Boiss.2'''^ ser. viii. 705), founded upon Schimper's 

 56 from Addi Abuii, Abyssinia 



10. P. limbatum, Meisn. in DC. Proclr. xiv. 12o. Perennial. 

 Stem pilose at first, then glabrescent, 3-4 ft. long. Leaves lanceolate, 

 nearly sessile, 3-4 in. long, clothed on both sides with short adpressed 

 hairs ; ochrese hairy, large, tightly clasping the stem in their lower two- 

 thirds, with a patent crisped herbaceous limb ciliate with rigid bristles. 

 Racemes about 3 to a branch, dense, 2-3 in. long ; bracts ciliate with 

 rigid bristles ; peduncles clothed with adpressed hairs. Perianth pink, 

 1-J lin. long. Stamens 7. Styles 2. Nut lenticular, convex, glossy, 

 nearly black, shorter than the perianth. — Hook. f. Fl. Brit. Ind. v. 30 ; 

 Hiern in Cat. Afr. PI. Welw. i. 1)04. 



T7pper Guinea. Senefj^ambia, Lelievre. Northern Nigeria: North Bornu, 

 miioH, 140 : 



Wile X.and. Kordofan : Birket Kahal, P/'M«rf,409 ! 668! Jur: SeribaGhattas, 

 iSchii:einfuylk^ 1361 ! 



Ziower Guinea. Angola: Huilla; in marshy wooded places from Ferrao da 

 Sola towards Jau, Welwitsch, 5374 ! 



Also in Egypt and Tropical Asia. 



11. P. Schinzii, C. 11. Wo-iffht. Stem stout, glabrous. Leaves 

 oblong-lanceolate, tapering to both ends, hairy at first, but soon becom- 

 ing glabrous except on the upper side of the midrib, undulate near the 

 margin, 4| in. long, 1 in. wide; petiole about 6 lin. long; ochrese 

 membranous, more or less campanulate, with a patent herbaceous limb, 

 at first densely hairy, soon glabrescent. Racemes axillary, about 3 

 together, dense-flowered ; bracts pinkish, broadly ovate, obtuse, not 

 ciliate, about as long as the IJ lin. long pedicels. Perianth 2 lin. long, 



