1953] 



PLANTS COLLECTED IN NYAS ALAND 



223 



MALVACEAE 



Abutilon angulatum (Guill. & Perr.) Mast, in Oliv. Fl. Trop. Afr. 1: 183. 1868. 

 Dastardia angulata Guill. & Perr. in Guill., Perr. & Rich. Fl. Senegamb. Tent. 65. 

 1831. 



Cholo District: Cholo Mountain, frequent in rain-forest regrowth, shrub 2-3 m. 

 high, foliage grey-green, flowers yellow, 1200 m., Sept. 21, 1946, 17715. Chik- 

 wawa District: Chikwawa, occasional in dry brushy forest, shrub 2 m. high, leaves 

 greyish, flowers yellow, 200 m., Oct. 2, 1946, 17899. Tropical and South Africa 

 and Madagascar. 



Abutilon longicuspe Hochst. ex A. Rich. Tent. Fl. Abyss. 1: 69. 1847. 



Kota-kota District: Nchisi Mountain, common in shrubberies bordering lower 

 montane forest, shrub about 3 m. high, leaves rugose, flowers lavender, stamens 

 purple, 1600 m., July 26, 1946, 16959; ibid., rain-forest borders, shrub 2 m. high, 

 flowers purple, 1500 m., Sept. 11, 1946, 17619. Eritrea to Nyasaland and Angola. 



Pavonia urens Cav. Tert. Dissert. Bot. 137. pi. 49, f. 1. 1787; Ulbr. Bot. Jahrb. 

 57: 104. 1920; var. urens. 



Cholo District: Cholo Mountain, rain-forest regrowth, shrub 2.5 m. high, 

 flowers pink, 1200 m., Sept. 23, 1946, 17768. The species widespread from the 

 A.-E. Sudan to Nyasaland and Angola, also in Madagascar and the Mascarenes. 



The following probably represent a shade-grown form of the above: 



Kota-kota District: Nchisi Mountain, rain-forest borders, shrub 1 m. high, 

 flowers pink, 1500 m., July 28, 1946, 16997; ibid., rain-forest edges, shrub 1.5 

 m. high, flowers pink, 1500 m., Sept. 11, 1946, 17620. 



Ulbrich, in his monograph of the African species of Pavonia (Bot. Jahrb. 57: 

 54-184. 1920-192 1), maintains P. schimperiana Hochst. ex A. Rich, as a species 

 distinct from P. urens. So many intermediates occur that I feel it desirable to 

 treat these two as a single species, but maintaining the varieties recognized by 

 Ulbrich. The following new combinations are therefore necessary under P. urens 

 Cav. 



var. urens. P. urens Cav. sensu stricto; Ulbrich, I.e. 



var. tomentosa (Hochst. ex Ulbr.) Brenan, comb. nov. P. schimperiana var. 



tomentosa Hochst. ex Ulbr. Bot. Jahrb. 57: 109. 1920. 

 var. hirsuta (Hochst. ex Ulbr.) Brenan, comb. nov. P. schimperiana var. hir- 



suta Hochst. ex Ulbr. Bot. Jahrb. 57: 109. 1920. 

 var. glabrescens (Ulbr.) Brenan, comb. nov. P. schimperiana var. glabrescens 



Ulbr. Bot. Jahrb. 57: 108. 1920. 

 var. schimperiana (Hochst. ex A. Rich.) Brenan, stat. nov. P. schimperiana 

 Hochst. ex A. Rich. Tent. Fl. Abyss. 1: 52. 1847, sensu stricto. P. schim~ 

 periana var. genuina Ulbr. Bot. Jahrb. 57: 108. 1920. 

 var. obtusiloba (Hiern) Brenan, comb. nov. Malache schimperiana var. obtusi- 



loha Hiern, Cat. Afr. PI. Coll. Welw. 1: 68. 1896. 

 The two specimens collected by Mr. Brass which I have indicated above as 

 possibly shade-grown P. urens var. urens are possibly to be referred to var. hir- 

 suta. However, their dissimilarity in facies to var. hirsuta, as well as the sparse 

 presence of the large rigid stellate hairs of var. urens suggest that these speci- 

 mens are indeed a modification of var. urens. Careful field observations as well 

 as cultivation may be necessary before a satisfactory classification of the varie- 

 ties of this protean species is possible. 



Pavonia cf. stolzii Ulbr. Bot. Jahrb. 57: 115. 1920. 



Zomba District: Zomba Plateau, rain-forest regrowth, shrub 2-2.5 m. high, 

 branches few, erect, fleshy, plant aromatic, flowers dark pink, 1500 m., June 5, 

 1946, 16272. 



