ASCLEPIADACE^ ELLIOTUN^. 



339 



know more about it, be perhaps better regarded as a section of this, 

 but at present it seems distinguished by its habit, beyond which 

 there is nothing to separate the two genera. 



Sph^rocodon Bth. 



Sph^rocodon caffrum Schltr. Tylophom cojfra Meissn. in 

 Hook. Loncl. Journ. Bot. ii. (1843), 542. Splmrncodon ohtusifolmm 

 Bth. in Ic. PL (1876), t. 1190. .S'. natalense Bth. I. c. sub t. 1190. 



East side of Albert Edward Nyanza, on dry grassy hills, Aug., 

 No. 8029. Tenaris E. Mey. 



Tenaris rostrata N. E. Br. in Gard. Chron. xxiv. (1885), 39. 

 T. VnUcemii K. Sch. in Ewjl. Flor. Ost-Afr. (1895), 827. 



Urundi and Karagwe, stony ground, Sept., 4000-5000 ft., No. 

 8211 ; stony places in Urundi, Sept., No. 8874. 



Brachystelma E. Br. 



Brachystelma shirense Schltr., n. sp. Herba simplex, erecta, 

 c. 10-25 cm. alta; caule stricto, tereti, remote foliato, tenuiter piloso; 

 foliis patentibus ovato- vel lanceolato-ellipticis, acutis vel acumi- 

 natis, basi in petiolum brevissimum attenuatis, utrinque tenuissime 

 pilosulis, margine ciliatis, 4-13 cm. longis, supra medium 2-6 cm. 

 latis; umbella terminali sessili- pauci- vel pluriflora, quam folia 

 suprema breviore, pedicellis filiformibus tenuiter pilosis, 1-3 cm. 

 longis; floribus late campanulatis, 7-1-5 cm. diametro; calycis seg- 

 mentis Imearibus vel lineari-lanceolatis acutis pilosis, 0-3-0-6 cm. 

 longis ; corollse lobis utrinque glabris vel subglabris alte connatis, 

 apicibus libeiis subtriangularibus acuminatis, 0-6-1-2 cm. lnnjj;is ; 

 corona more generis pro magnitudine corolise minuta, foliolis in 

 tubum subcylindricum alte connatis, apicibus liberis tripartitis, 

 partitionibus subtequilongis, lateralibus triangularibus obtusiusculis, 

 erectis, apice ciliatis, intermedio oblongo obtuso, supra stigma inflexo, 

 antherifero, glabro ; polliniis erectis, oblique rhomboideis, apice 

 margine interiore anguste cristatis, caudiculis brevissimis, glandulae 

 ovoideo-lanceolatae obtuste basi insertis ; stigmate generis truncatis. 



Shire Highlands, Milanji, Dec, No. 8666 ; Shire-Zambesi, 

 Chiromo, Jan., No. 8697; Shire Highlands, Scotchi, 4000-5000 ft., 

 No. 8520. 



A very distinct new species, most nearly allied to B. Barberce 

 Harv. from South-eastern Africa, but at once distinguished by the 

 corolla, which in B. Barbera has the tip united at the top, as in 

 the genus Biclmlia. The size of the flowers in our plant seems to be 

 very variable; in No. 8666 they are just twice as large as in No. 8520; 

 but, besides this, I cannot find anything else to separate the two. 



Caralluma Wight et Am. 

 There is one number evidently belonging to this genus, but 

 without flowers, and therefore indeterminable (No. 6208). 



Explanation of Plate 351. — Pleurostelma africamtm Schlecht. (for descrip- 

 tion see p. 303). Plant nat. size. 1. Flower. 2. Ditto, corolla and stamens 

 removed. 3. Corona and andrcecium. 4 & 5. Two views of a corona-scale. 

 6. Anther. 7. PoUinium. (1-7 enlarged.) 



z 2 



