ASCLEPIADACEJi: AFRICANS 



363 



Hab. Angola, near Forte Kolui, Kubango ; Gosstceiler, 2177. 



Eadicum tubera 12-25 mm. long., 5-8 mm. lat., pars tenuis 

 + 2 cm. long., circa 1 mm. lat. Caulis vix 2 mm. diam. Folia 

 4-4-5 cm. long., 10-12 mm. lat. (spec, unici nobis obvii par infi- 

 mum modo 20 x 7 mm.) ; petioli 2-3 mm. long. Pedunculi 4-8 mm. 

 long., bracteae 3-4 mm., pedicelli 4-5 mm. Flores virescentes. 

 Calycis segmenta segre 4 mm. long. Corollse lobi 6x3 mm. 

 Coronas phylla (appendice 1 x '75 mm. exempta) 1-75 x 1*5 mm. 

 Columna staminea 2-25 mm. long. Pollinia oblongo-pyriformia, 

 5 mm. long. ; caudiculae '3 mm., glandula "25 mm. long. 



The position of this plant in the genus is uncertain. It should 

 find a place among the broad-leaved species, but these have their 

 leaves broad-based, whereas S. Gossiveileri has them narrowing 

 into the petiole. Besides this, the plant can be told by its small 

 flowers and its corona. 



Odontostelma minus, sp. nov. Caule e radice tuberiformi 

 ascendente gracili fere a basi folioso unilateraliter puberulo, foliis 

 sessilibus anguste linearibus acutis margine revolutis fere omnino 

 glabris, umbellis paucifloris inferioribus longe summis breviter 

 pedunculatis pedunculis unilateraliter pubescentibus, pedicelHs 

 fioribus circiter aequilongis pubescentibus, calycis segmentis ovato- 

 lanceolatis acutis quam corollas campanulatae lobi obovato-oblongi 

 emarginati multo brevioribus, coronae phyllis ima basi connatis 

 parvuhs quadratis margine terminali denticulatis intus lamina 

 transversa auctis, antherarum alis prominentibus appendicibus 

 late ovatis super stigma planum inflexis. 



Hab. Angola, between Forte Princeza Amelia and Eio Cu- 

 bango ; Gossioeiler, 2332, 4210 in part. 



Eadicis pars tuberiformis oblonga vel ovoidea (17 x 11 vel 22 

 X 6 mm.), collum sat validum, erectum, 8-15 mm. long. Caulis 

 spithameus, 1-1*5 mm. diam. Folia summum 6 cm. long., sed 

 saepius breviora, circa 1 mm. lat. Pedunculi summum 45 mm. 

 long., saepe modo 12-18 mm. Pedicelli + 5 mm. long. Flores 

 dilute purpureo-virescentes. Calycis segmenta 2 mm. long. 

 Corollas lobi 4x2 mm. Corona alt. '5 mm. Columna staminea 

 2 mm. long. Pollinia oblonga, '5 mm. long ; caudiculae latae, 

 glandulae aequilongae, *2 mm. long. Folliculus hucusque valde 

 crudus anguste fusiformis, utrinque praesertim apicem versus 

 longe angustatus, minute puberulus, 8 cm. long., inferne 1-1*5 mm., 

 juxta medium 4 mm., sub apice vix 1 mm. lat. 



With the habit and general appearance of 0. Wehoitschii the 

 present plant differs from it in the small flowers, and in the still 

 shorter and in several respects different corona. 



I prefer to keep this apart from Schizocjlossuin, in which N. E. 

 Browm would place it. 



Cynanchum Gossweileri, sp. nov. Caule volubili crassi- 

 usculo glabro, foliis late ovatis verisimiliter acutis basi rotundatis 

 nisi rotundatissimis nequaquam cordatis membranaceis glabris 

 petiolis se ipsa semiaequantibus insidentibus, floribus parvis in 

 racemis sat longipedunculatis plurifloris dispositis.bracteis minimis 

 subulatis, pedicellis flores longe excedentibus pubescentibus, 



