100 cix. roLYGOXACE^ (baker and WRIGHT). [Oxygouum, 



1-li in. long, acute, narrowed gradually at the base to a short petiole; 

 ochrefe greenish-white, funnel-shaped, ciliate-dentate or nearly entire. 

 Kacemes very lax, 4-S in. long ; flowers 2-3 to a cluster ; pedicels 

 much longer than the ovate membranous bract. Perianth-limb pinkish 

 or milk-white, 2 lin. long. Perianth-tube in fruit ovoid, 4 lin. long, 

 broadly winged at the o angles. — Meisn. in DC. Prodr. xiv. 38 ; Hook, 

 Ic. PI. xiv. 14, t. 1321 ; Hiern in Cat. Afr. PI. Welw. i. 902 ; Schinz 

 in Bull. Herb. Boiss. iv. Append, iii. 57. 



Xiower Guinea. Anfrola : Huilla ; near Lopollo, Wehcitsch, 1755! German 

 South-west Africa : DamaralaiKl, Chapman Sf Balnea ! Amboland ; Olukonda, Schinz^ 

 500! Rautanen, 185, Hopfner^ lllC; Hererolaiul, BeJck, 27; Great Namaqna- 

 laiul, Fleck, 151a. 



Mozamb. Dlst. British Central Africa: Ngainilaiid ; Kwehe, iH_^arf?, 89 ! 

 90! Mrs. Lugard, 109 ! Rhodesia ; Victoria Falls, Allen, 287 ! 



Also in extra-troi»ical South Africa. 



1 have not seeii the nearly allied O. canescens, var. stibglabra, Schinz in Bull. 

 Herb. Boiss. iv. Append, iii. 57, from Amboland, Schinz, 2058, and Wulfhorsf, 4. 



3. O. delagoense, 0. Kuntze, Rev. Gen. PI. iii. 268. Herbaceous. 

 Stem erect or ascending, up to 3 ft. high ; branches slender, more or less 

 distinctly triquetrous, papillose. Leaves from linear to lanceolate, 1-2 

 in. long, 1-3 lin. wide, acuminate, sometimes tritid, pubei^cent ; ochrene 

 3 lin. long, tubular, pubescent, setae about 10, pallid, shorter than the 

 tubular part. Racemes terminal, lax. slender, up to 6 in. long; bracts 

 oblique, subulate, not setose, pubescent ; pedicels 2-4 in the axil of each 

 bract, shortly exserted. Perianth nearly 3 lin. long, cylindrical and 

 densely pubescent below, campanulate and less densely so above ; lobes 

 twice as long as the tube, oblong, acute. Stamens half as long as the 

 perianth ; anther-cells diveiging at the base. Fruit triquetrous, 

 acuminate, not winged nor spiny. 



MCozamb. Dlst. Rhodesia: Lcshumo Valley, ^oZwi, 720 I 732! 795! 796! 



Also in South Africa. 



Var. sfricfum, C. H. AVriglit. Rootstock woody. Stems erect, ])nberuloug, 

 reddish and woody below, slender. Leaves linear, I in. lonj^, 1 lin. wide or less, 

 almost c^labrous ; sctji- longer than the tubular part of the ochrea>. Bracts with 

 about 2 seta- besides the terminal cusp. 



IVfozamb. Bist. (iernian Ea.-t Africa: cast side of Lake Tangan\ika, Scotf- 

 Elliot, 83G5 ! 



The habit of the variety suggests development after prairie fires. 



4. O. pubescens, C. 11. WrigJd. Stems ascending, \-\ ft. high^ 

 slightly sulcate. not much swollen at the nodes, 1 lin. in diam., finely 

 pubescent; ochrea? 2 lin. long, seta? nearly as long as the tube. Leaves 

 linear, 1 in. long, \ lin. wide, acute, puberulous. Racemes lax, about 5 in, 

 long; bracts campanulate, cuspidate, without setie ; flowers 2-3 in each 

 cluster; pedicels longer than the bracts. Perianth "whitish-yellow" 

 (CeciV), campanulate, about 3 lin. long, puberulous outside ; lobes ovate, 

 obtuse, half as long as the tube. Stamens included ; filaments | lin. 



