ASCLEPIADACE^ AFRICANS 345 



Near A. imlchclla N. E. Br., from which it differs in the 

 foHage and in several respects in the flowers. 



A. PULCHELLA N. E. Br. 



Angola, in short thicket-grown pasturage at Munonque, at 

 Forte Princeza Amelia, and at Kapembe, Kubango ; Gosstveilcr, 

 2387, 2387a, 2327, 4127. 



The rediscovery of this plant by Mr. Kassner w^as announced 

 three years ago (Journ. Bot. 1909, p. 219). Mr. Gossweiler had, 

 however, previously gathered it several times, but the opportunity 

 of examining his specimens did not occur until recently. 



Asclepias Ameliae, sp. nov. Eadice globoso-tuberoso superne 

 collum brevem suffulciente, caule satis humili a basi ramoso ramis 

 sursum foliosis puberulis, foliis sessilibus lineari-oblongis acutis 

 margine revolutis costa media pag. inf. valde prominente sparsis- 

 sime pilosa exempta glabris, umbellis paucis corymbosis peduncu- 

 latis 4-5-floris, pedunculis ut bracteae lineares pro rata elongatae 

 pedicellique piloso-pubescentibus puberulisve, calycis segmentis 

 quam corolla brevioribus lineari-lanceolatis acutis dorso pubescen- 

 tibus, corollse alte divisse lobis oblongo-obovatis apice retusis 

 margine microscopice ciliolatis, coronas phyllis e basi columnse 

 staminese ortis eidemque inferne adnatis dimidio inf. comphcato- 

 cucuUatis margine superiori brevi utrinque in lobum ovatum 

 obtusum erectum exeunte intus pulvino transverso perspicuo 

 necnon basin propius lamina transversa lata onustis dimidio sup. 

 erectis oblongo-subquadratis obtusis margine inflexis columnae 

 stamineae culmen baud attingentibus, antherarum alis prominen- 

 tibus appendicibus late ovatis supra stigma subplanum inflexis. 



Hab. Angola, in stony thickets between Forte Princeza Amelia 

 and the Eiver Kubango; Gossiveiler, 2176. 



Tuber fere 2 cm. diam., radicis pars inf. 6 cm. long., l'5-2-5 cm. 

 diam. ; collum 12 x 4 mm. Caulis vix 10 cm. alt. Folia 1*5- 

 3-5 cm. long., + 4 mm. lat., in sicco griseo-viridia. Pedunculi 

 longiores 1-1-5 cm., breviores + 7 mm. long. ; bracteae usque ad 

 6 mm. long., pedicelli circa 4 mm. Flores dilutissime violacei. 

 Calycis segmenta 5 mm. long. Corollae lobi 7x3 mm. Coronae 

 phylla 3-5 mm. long. ; pars cucullata 1-75 mm., pars terminalis 

 1-75 mm. long., haec juxta basin 1*5 mm. lat. Columna staminea 

 segre 4*5 mm. long. Antherarum alae fere 2 mm. long. Pollinia 

 triangulari-pyriformia, 1 mm. long. ; glandula minuta, circa '2 mm., 

 caudiculae "4 mm. long. 



The chief floral difference between this and A. modesta N. E. Br. 

 resides in the smaller coronal leaves of the plant described above, 

 united to the staminal column below, and provided with a pro- 

 minent transverse lamina below the pulvinus, a structure of which 

 the coronal leaves of A. modesta show no trace. 



Asclepias radiata, sp. nov. Caule spithameo subsimplici 

 tenui ascendente distanter folioso sparsim pubescente, foliis sessili- 

 bus linearibus acutis margine revolutis sparsim pubescentibus, 

 umbellis paucis (spec, unici mihi obvii 2) corymbosis 4-floris, 

 pedunculis pedicellisque graciUbus ut bracteae lineares sparsim 



