. Bulletin of the British Museum (Natural History). Botany; Botany. PARMELIA (AMPHIGYMNIA) IN EAST AFRICA 225 distinct species on account of the reaction with C in the medulla. Almeda & Dey (1973) considered that all specimens with either a C+ or a KC+ reaction contained gyrophoric acid, and on this basis they found P. madagascariacea to be conspecific with P. aberrans. They believed that the name madagascariacea antedated aberrans by a year, a misconception which can be traced back to a printing error in Hale (1965). Des Abbayes (1958) in fact made the two combinations on the same page, b
. Bulletin of the British Museum (Natural History). Botany; Botany. PARMELIA (AMPHIGYMNIA) IN EAST AFRICA 225 distinct species on account of the reaction with C in the medulla. Almeda & Dey (1973) considered that all specimens with either a C+ or a KC+ reaction contained gyrophoric acid, and on this basis they found P. madagascariacea to be conspecific with P. aberrans. They believed that the name madagascariacea antedated aberrans by a year, a misconception which can be traced back to a printing error in Hale (1965). Des Abbayes (1958) in fact made the two combinations on the same page, but invalidly according to the Code (Art. 33); they were not validated until 1961 (see above under synonyms). [Authors who wish to maintain chemical species within this group should investigate the chemistry of P. nyasensis Dodge, which is an earlier name; the KC+ reaction cited by Hale (1965) for this species indicates that the name might take precedence over P. aberrans and P. madagascariacea.] Parmelia xanthina is a conspicuous species which is not easily overlooked; it must there- fore be regarded as very rare in East Africa. We have collected it once in Kenya, where it grew on trees on an open, well lit hillside at 1500 m altitude. It is common and widespread in the Americas, and has scattered occurrences in Africa and Asia (Hale, 1965). East African record Kenya. Eastern Province, Machakos District, Ol Doinyo Sapuk, 20 km SE ofThika, 2 K 2/11, 109. 70. Parmelia zollingeri Hepp Fig. 30 in Zollinger, Syst. Verz. ind. Archipel 1 : 9 (1854).—Parmotrema zollingeri (Hepp) Hale, Phytologia 28:339 (1974). Type: In litore pr. Propoli, Prov. Bantam, Zollinger 1241 (L—holotype). [TLC: protocetraric acid, atranorin.] Thallus corticolous, coriaceous, loosely attached, pale grey. Lobes 1-1*5 cm broad, rounded, entire or weakly crenate, eciliate (or with short cilia), central lobes more or less Fig. 30 Parmelia zollingeri Hepp, K 44/16 (BM). Rule =1 cm,. Please note that
Size: 1849px × 1351px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorbritishmuseumnatur, bookcentury1900, booksubjectbotany
