. Bulletin of the British Museum (Natural History). Botany; Botany. PARMELIA (AMPHIGYMNIA) IN EAST AFRICA 223 Type: Kenya. Eastern Province, Meru District, Mt Kenya, E side, near Chogoria, 0° 14' S, 37° 37' E, on trees in valley, alt. 1600 m, February 1974, coll. H. Krog& T. D. V. Swinscow no. 3 K 7/103 (O—holotype, BM—isotype). Morphologically P. permutata may resemble P. umbrosa in its emaculate cortex, long cilia, and marginal, linear soralia, but differs in its pigmented medulla and the absence of proto- cetraric acid. Parmelia sancti-angelii differs from P. umbrosa in its imperforate
. Bulletin of the British Museum (Natural History). Botany; Botany. PARMELIA (AMPHIGYMNIA) IN EAST AFRICA 223 Type: Kenya. Eastern Province, Meru District, Mt Kenya, E side, near Chogoria, 0° 14' S, 37° 37' E, on trees in valley, alt. 1600 m, February 1974, coll. H. Krog& T. D. V. Swinscow no. 3 K 7/103 (O—holotype, BM—isotype). Morphologically P. permutata may resemble P. umbrosa in its emaculate cortex, long cilia, and marginal, linear soralia, but differs in its pigmented medulla and the absence of proto- cetraric acid. Parmelia sancti-angelii differs from P. umbrosa in its imperforate apothecia, sublageniform to rod-shaped conidia, and lack of protocetraric acid. Parmelia indoafra differs chemically in that it has norlobaridone instead of protocetraric acid, and it also has less well developed cilia. A combination of protocetraric and gyrophoric acids is known in Amphigymnia only from an isotype specimen of the primary species P. blanchetii Hue in BM (Winnem, 1975). The type is fragmentary, and it cannot be ascertained if it is related to P. umbrosa or not. The protologue mentions that P. blanchetii has imperforate apothecia and cylindrical conidia 8-9 //m long, but more material needs to be studied in order to determine whether these differences are real. Parmelia umbrosa has been collected once in Uganda at c. 1300 m altitude and a few times in the lower montane forests on Mount Kenya between 1600 and 2100 m. Outside our area it occurs in Malawi (Southern Province, Mulanje District, Mulanje Mts, Lichenya Plateau, 1800-2000 m, Ryvarden 11711, O). East African records Kenya. Eastern Province, Meru District, Mt Kenya, E side, near Chogoria, 3K 7/103 {type collection), Mt Kenya, E side, at Themwe, 3K 16/103. Central Province, Kirinyaga District, Mt Kenya, S side, 2 km NW of Irangi Forest Station near River Ena, K 48/134. Uganda. Ankole District, Isingiro County, Kikagati, on Kagera River, Burnet AMB 201 (BM). 68. Parmelia vivida Krog & Swinscow sp. n
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