ASCLEPIADACE^ AFRICANS 359 



insidentibus illis sessilibus, bracteis parvis subulatis quam pedicelli 

 filiforraes minute pubescentes multo brevioribus, calycis segmentis 

 lanceolato-oblongis acutis puberulis reflexis, corollaB parvae alte 

 partitas lobis oblongis obtusis extus puberulis a basi reflexis, 

 coronae phyllis parvulis ex columna staminea prope basin ortis 

 late ovatis obtusissimis reflexis dente parvo cum sociis conjunctis, 

 antherarum alis prominentibus deorsum divergentibus appendici- 

 bus suborbicularibus stigmati concavo impendentibus. 



Hab. Angola, near Kossuango, skirting the meadows along 

 the Kuiriri ; Gossiueiler, 3231. 



Caules 2-5-3 dm. alt., 1 mm. diam. ; internodia circa 6-7 cm. 

 long. Folia 6-9*5 cm. long., circa "5 mm. lat., in sicco viridia. 

 Pedunculi summum 5 mm. long. Bracteae 1-5-3 mm. long., 

 pedicelli 7-8 mm. Flores virescentes. Calycis segmenta 1-25 mm. 

 long. CorollaB lobi 3x1 mm. Coronae phylla crassiuscula, 

 •35 mm. long., basi '75 mm. lat. ; dentes interpositi -25 mm. long. 

 Columna staminea 1-75 mm. long. Antherarum alae 1-25 mm. 

 long. ; appendices -8 mm. long. Pollinia oblongo-pyriformia, 

 •7 mm. long., caudiculae -25 mm., glandula -3 mm. 



Very close to X. decipiens N. E. Br., but more slender in 

 habit with narrower leaves, markedly smaller flowers with reduced 

 coronal leaves and relatively larger interpolated teeth. The pollinia 

 also are decidedly smaller. 



_ Xysmalobium congoense, sp. nov. Herba ascendens bi- 

 spithamea, caule deorsum nudo sursum bene folioso bisulcato 

 sulcis pubescentibus exemptis glabro, foliis sessilibus elongatis 

 anguste linearibus obtuse acutis glabris, umbellis apicem versus 

 caulis paucis interpetiolaribus circa 16-floris, pedunculis validis 

 foliis multo brevioribus ut pedicelli se ipsos subaequantes pubes- 

 centibus, calycis segmentis lanceolatis acutis microscopice pube- 

 rulis, corollae parvulae lobis calycem excedentibus ovato-oblongis 

 obtusis extus microscopice puberulis, coronae phyllis minimis 

 tubercula referentibus juxta basin columns stamineae insertis, 

 antherarum appendicibus fere orbicularibus supra stigma apice 

 leviter elevatum inflexis. 



Hab. Belgian Congo, Lovoi Eiver, Katanga ; Kassner, 3354. 



Caulis summum 2 mm. diam., rigidus etsi gracilis. Folia 

 8-9 cm. long., circa 2 mm. lat., margine cartilaginea. Pedunculi 

 4-7 mm. long., juniores gradatim imminuti. Bracteas subulatae, 

 puberulae, circa 1 mm. long. Pedicelli circa 4 mm. long. Calycis 

 segmenta longit. 1 mm. paullulum excedentia. Corollae verisimi- 

 liter atro-violaceae lobi 2 mm. long. Columna staminea vix 1 mm. 

 long. Antherarum appendices fere 1 mm. diam. Pollinia oblongo- 

 ovoidea, caudiculis necnon glandulaB aequilonga, -3 mm. long. 



To be inserted next X. (jramincum S. Moore, which has shorter 

 and somewhat broader leaves and markedly larger (although still 

 small) flowers with longer calyx and corolla-lobes, larger and more 

 flattened coronal leaves, a broader staminal column and differently 

 appendaged anthers. 



X. SESSILE Decne. var. parviflora, var. nov. Folia subtus 

 pubescentia vel fere glabra, 5-6 x 2-2-5 cm. Calycis segmenta 



