272 CONTRIBUTIONS TO SOUTH AFRICAN ASCLEPIADOLOGY. 



gynostegio subaequilongis ; antheris oblongis, marginibus cartila- 

 gineis, angustis (tamen bene conspicuis), loculos vix aequantibus, 

 appendice hyaliuo ovato obtuso apice in stigma inflexo, marginibus 

 loculorum rotundato-emarginatis ; poUiniis oblongis utrinque obtusis, 

 niinime compressis, caudiculis brevissiniis divaricatis, basi angustata 

 glandulte juxta basin iusertis, glandula oblonga obtusa, quam pol- 

 linia multo minori. 



Inter friitices scandens prope Phoenix, et prope Avoca, Aug. 

 1893 (fructifera), et Apr. 1895 (florifera), alt. c. 150 ped., It. 

 Schlechter, No. 7090. 



Amongst the South African species of Ci/nanchum the present 

 species has hardly any affinity. Tlie structure of the corona-scales 

 is rather remarkable, and perhaps best to be compared with that of 

 C. obtusifolimii L. fil., but without any appendages or lamellre on 

 the inner side, and the tip of the scales always bifid, as in some 

 Sekizorjlossiwi . This latter character does also occur in C. ohtnsi- 

 folium, but it is there by no means constant. 



The first I saw of this plant were fruiting specimens on a rather 

 swampy place near Phcenix, on the coast of Natal north of Durban, 

 and a few weeks later near Avoca, a few miles further south, in 

 September, 1893. After leaving the Natal coast the following 

 August, I never succeeded in finding it again during all my travels 

 in Eastern South Africa, till in April, 1895, I arrived again in 

 Durban to prepare for my return to Europe. I then thought it 

 worth while to go to the above-named localities to try to get 

 specimens with flowers, and, together with Mr. Wood and Mr. 

 Evans, of Natal, I succeeded in getting good flowering specimens, 

 which enabled me to describe the plant. 



The flowers are rather small, with green petals and a white 

 corona. 



28. Riocreuxia polyantha Schltr., n. sp. Volubilis, alte 

 scandens, glaberrima, valde ramosa ; ramis filiformibus distanter 

 foliatis ; foliis patentibus graciliter petiolatis ovatis attenuato-acutis 

 vel acuminatis glabris, basi profundius reniformi-cordatis, 5-7 cm. 

 longis, supra basin 2-4-5 cm. latis, petiolo 2-5 cm. longo; floribus 

 in cymis extra-axillaribus alternautibus laxe racemosis, multifloris, 

 pedicelUs gracillimis filiformibus, 1-7-2 cm. longis; calycis seg- 

 mentis lineari-lanceolatis acutissimis glabris, 0-3 cm. longis, corollne 

 tubo subcyhndrico basi paulo attenuate, glaberrimo, 1-2 cm. longo, 

 medio 0-3 cm. diametro, lobis lineari-elongatis apice cohterentibus 

 utrinque glabris, vix 0-9 cm. longis; coronse foliolis ; cum basi 

 foliolorum interiorum in annulum brevem connatis, apicibus liberis 

 10 brevissimis dentiformibus acutis, erecto-patentibus, coronfe in- 

 terioris foliolis erectis lineari-ligulatis obtusis multo exteriora 

 superantibus, gynostegium fequantibus, apice in stigma inflexis ; 

 polliuiis pyriformibus obtusis, vix compressis, caudiculis divaricatis 

 brevissimis, glandulfe minimse rhomboidese obtusa basi affixis ; 

 stigmate generis. 



In fruticetis juxta flumen Bashee, in terra Transkei appellata, 

 alt. 2500 ped., florens Jan. 1895, Ti. Schlechter, No. 6291. 



This is evidently one of the species of Hiucreuxia which were 



