NEW AFRICAN PLANTS 209 



araneoso-tornentosis, capitulis homogamis circa 10-flosculosis in 

 corymbum pluricephalum subdensum araneoso-tomentosum dis- 

 positis, involucri turbinati 4-serialis phyllis oblongis exterioribus 

 dorso araneoso-tornentosis interioribus appendice oblongo-ovata 

 obtusa vel acuta laete flava haud radiante onustis, corollis inclusis 

 breviter lobatis, antherarum caudis abbreviatis, achaeniis cylindricis 

 pubescentibus, pappi setis pluribus corollis fere aequilongis ima 

 basi connatis scabriusculis sordide albis. 



Hab. Congo, Kamatanda; Rogers, 10,331. 



Folia caulina circa 15 x 3 mm., cauli subapproximata in- 

 ferneque eundem leviter amplectantia. Corymbi 1-2 x 2*5-3 cm., 

 hujus rami abbreviati ; pedunculi proprii 0-3 mm. long. Capitula 

 circa 8x5 mm. Involucri phylla ext. 5-5-5 x 1-1-25 mm., int. 

 7x2 mm. Corollas 5 mm. long. ; lobi triangulares, longit. -5 mm. 

 segre adasquans. Antherarum caudas simplices, "3 mm. long. 

 Achsenia 1'5 mm. long., pappus 4-5 mm. 



Very close to H. congolanum Schlechter & 0. Hoffm., from 

 which it differs chiefly in the somewhat smaller heads, shorter 

 involucral leaves, the inner ones ending in a bright yellow (not a 

 horn-coloured) appendage, the very short lobes to the corolla and 

 short tails to the anthers. 



Gnaphalium araneosum, sp. nov. Annuum, parvulum, a 

 basi ramosum ramis ascendentibus attenuatis foliosis araneosis, 

 foliis sessilibus anguste lineari-spathulatis obtusis araneosis, 

 capitulis ultra 50-flosculosis in glomerulos densos oligocephalos 

 araneosos ordinatis, involucri parvi 4-serialis phyllis ext. ovatis 

 obtusis interioribus longioribus ovato-oblongis appendice oblongo- 

 lineari obtusissima deorsum rosea sursum dilute brunnea onustis, 

 flosculis intimis 4-8 hermaphroditis, corollis apice breviter 5-lobis, 

 styli ramis truncato-capitatis, achaeniis cylindricis glabris, pappi 

 setis scabriusculis albis. 



Hab. N.W. Ehodesia, Lake Chirengwa, with Helicliysum 

 angustifrondeum; Rogers, 8406, in part. 



Planta 1-3 cm. alt. Folia circa 5 x *5 mm., sunnna more 

 involucri capitula stipantia. Glomeruli 8-12 mm. diam. Capitula 

 3*5 x 3 mm. Involucri phylla ext. 3 mm. int. 3-5 mm. long. 

 Flosculi fern, pro capitulo circa 50. Fll. hermaph. corollas 2 mm. 

 long. ; hujus lobi *2 mm. long. Achsenia -6 mm. long., pappus 

 2 mm. 



G. prostratum DC, to which this comes nearest, has different 

 foliage and involucral appendages. The linear-oblong, very 

 obtuse, pale brown appendages to the involucral leaves are a 

 characteristic feature of the species. 



2. ACANTHACE^E AFRICANS NOV^E VEL RARIORES. 



Thunbergia (§ Eu-Thunbergia) Monroi, sp. nov. Frutex 

 scandens ramis crebro foliosis hirtulo-pubescentibus, foliis parvis 

 petiolatis cordatis obtusissimis margine undulatis raro obscuris- 

 sime trilobis quinquenerviis membranaceis supra scabridis subtus 

 scabride pubescentibus, floribus in axillis solitariis pedunculis pube- 



