462 POLYGONACEE (Wright). [Oxygonum. 
Var. B, robustum (0. Kuntze, l.c. 269) ; stem shorter and less branched than in 
the type, 1 lin. in diam. ; leaves three times wider. 
- Eastern Recron: Delagoa Bay; in maize stubble, Scott! Monteiro, 16! 
Schlechter, 12013! Var. 8: Delagoa Bay, Kuntze. Lorenzo Marques, Wilms, 1280! 
5. 0. calearatum (Burch. ex Meisn. in DC. Prodr. xiv. 38) ; stems 
much-branched, virgate, glabrous, ribbed ; branches virgate ; leaves 
entire or with 1-2 short teeth below the middle, about }—1 in. long, 
1 lin. wide, glabrous ; ochrez about 3 lin. long, brown, entire above, 
more or less toothed below; flowers about 3 together; pedicel 
slender, 14 lin. long ; perianth campanulate, 3 lin. long, pubescent 
outside below ; lobes longer than the tube, oblong ; fruit 3 lin. long, 
conical, ribbed, pubescent, with 3 horns } lin. long below. 
Katanart Recron: Bechuanaland ; near the sources of the Kuruman River, 
Burchell, 2459 ! 2487/1! 
6. O. canescens (Sond. in Linnea, xxiii. 100); stem about 6 in. 
high, much-branched, woody ; branches angular, clothed with down- 
ward pointing white hairs; leaves pinnately or bipinnately lobed, 
hairy like the branches ; lobes linear, hair-pointed ; ochree with 
setaceous teeth from a triangular base; racemes 2-3 in. long, 
interrupted ; flowers solitary ; pedicels eglandular ; perianth yellow, 
24 lin. long ; segments oblong, acute ; filaments more slender than 
in O. Zeyheri, with a tuft of hairs near the base ; styles 3, as long 
as the stamens; ovary pubescent, with 3 basal horns. Meisn. in 
DC. Prodr. xiv. 38. 
Katanart ReGion: Transvaal; Marabastadt,. Nelson, 118! Rustenburg, 
Collins, 46! Aapies River, Zeyher, 1451la, Burke ! 
There are also specimens at Kew marked ‘‘ Grahamstown, Atherstone,” but 
there is doubt as to the correctness of this labelling. 
7. 0. atriplicifolium, var. sinuatum (Baker in Dyer, Fl. Trop. 
Afr. vi. i. 101); stems diffuse, ascending, finely pubescent along 
one side ; leaves deltoid to oblong, deeply pinnately lobed, acute, 
abruptly cuneate at the base, puberulous, 14} in. long, 9 lin. wide ; 
petiole 3 lin. long ; ochree 3 lin. long, pubescent, setee as long as 
the tube ; racemes lax, usually about 6 lin. long, slender ; bracts 
similar to the ochree, 2—3-flowered ; perianth 1} lin. long, pale 
pink ; lobes ovate; fruiting-perianth 3 lin. long, conical at the 
base and apex, with a spreading spine from each of the three angles 
below the middle. O. sinuatum, Dammer in Engl. & Prantl; Pflanz- 
enfam. iii. 1a, 30. O. cordofanum, Dammer, l.c. O. canescens, var. 
subglabra, Schinz in Bull. Herb. Boiss. iv. App. iii. 57. Ceratogonum 
sinuatum, Hochst. & Steud. ex A. Rich. Tent. Fl. Abyss. ii. 231 ; 
Meisn. in DO. Prodr. xiv. 40. ©. cordofanum, Meisn. l.c. 39. 
C. atriplicifolium, A. Rich. Tent. Fl. Abyss. ii. 231 ; Oliv. in Trans. 
Linn. Soc. xxix. 141. Diplopyramis zxthiopica, Welw. Apont. 591: 
J. Britt. in Journ. Bot. 1895, 75. 
a 
