502 DECADES PLANTARUM NOVABUM AUaTRO-AFEICANARUM. 



excedentibus ; acheniis immaturis oblongo-cylindricis, sericeis, 

 pappi squamis lanceolatis acuminatissimis, sublaceratis. 



In regione austro- oriental! : in collibus lapidosis ad fontes flu- 

 minis Polela, in mentis Drakensbergen, alt. 6000-7000 ped., Febr. 

 1896, M. S. Evans, No. 611. 



A species of the section Trichoconui, allied to B. aetifera DC, but 

 well distinguished by its habit, leaves, inflorescence, and smaller 

 heads. 



15. Convolvulus transvaalensis, sp. n. Perennis, e basi 

 ramosus ; raniis filiformibus elongatis, decumbentibus, villosis, 

 satis dense foliatis ; foliis erectis breviter petiolatis circuitu lineari- 

 bus vel lineari-lanceolatis, acutis, basi auriculato-sagittatis margino 

 plus minus uudulato-dentatis, utrinque pilis brunneo-cinerascenti- 

 bus tomentosis, subtus reticulato-venosis, superne subrugosis, 3-5 

 cm. longis, medio fere 0-5-1 cm. latis, petiolo tomentoso 0-3-0"4 cm. 

 longo ; floribus singulis niveis graciliter pedunculatis, pedunculo 

 filiformi erecto nunc folio fequilongo, nunc paulo breviore, tomen- 

 toso, supra medium bracteolis 2 oppositis 6rectis, anguste linearibus 

 tomentosis, calycis basin attingentibus, ornato ; calyce quam corolla 

 duplo breviore, foliolis erectis tomentosis innequilongis, 3 exteriori- 

 bus ovato-lanceolatis acuminatis, interioribus 2 paulo minoribus 

 angustioribusque ; corolla c. 25 cm. longa, extus lineis 5 e basi 

 usque ad apicem acatam loborum pilosis ornata, creterum glaberrima, 

 apicibus loborum brevissimis acutis ; staminibus quam corolla duplo 

 brevioribus, filamentis dimidio inferiore adnatis, filiformibus glabris, 

 apice plus quam tertia parte bibrachiato, brachiis suberectis fili- 

 formibus ; antheris linearibus ; stylo staminibus ^equilongo filiformi 

 glabro, ovario glabro. 



In regione austro-orientali : in collibus graminosis prope Bar- 

 berton (Transvaaliae), alt. c. 3000 ped., Aug., Sept. 1889, E. E. 

 Galpin, No. 430. 



Nearly allied to C. natalensis Bernh., but with different foliage 

 and inflorescence. 



16. Chsenostoma macrosiphon, sp. n. Suffrutex debilis, 

 erectus, ramosus ; ramulis erectis teretibus glabris ; foliis oppositis 

 linearibus vel lineari-subspathulatis acutis, tenuissime puberulis, 

 basi nunc in petiolum brevissimum attenuatis, 0'8-2-2 cm. longis, 

 internodiis nunc fequilongis nunc brevioribus ; floribus axillaribus 

 singulis, graciliter pedicellatis, pedicellis suberectis fiUformibus, 

 tenuissime puberulis, folia excedentibus ; calycis segmentis sub- 

 ffiquilongis lineari-setaceis subinconspicue puberulis, ad medium 

 usque in tubum connatis 0-9 era. longis ; corolla in genere longis- 

 sima, extus tenuiter puberula, tubo elongato cylindrico stricto ; 

 fauces versus paulo dilatato, 2-3 cm. longo, segmentis rotundatis 

 obtusis, integris, vix 0-3 cm. longis ; stylo filiformi, tubo s^qui- 

 longo, glabro, antheras 2 longiores paulo superante ; capsula 

 ovoideo-oblonga glabra, calyci sequilonga. 



In regione austro-orientali : in saxosis summi montis " Andries- 

 berg," prope Bailey, alt. c. 6400 ped., Febr. 1896, E. E. Galpin, 

 No. 2004. 



