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The article also reveals that the date of the type specimen of Euphorbia amygdaloides subsp. robbiae does not match the literature, and it is proposed that the specimen dated 12 May 1949 be treated as the holotype. This paper explains why a lectotypification of the specimen is unnecessary. | Research Article Turk J Bot 36 (2012) 650-654 © TÜBİTAK doi:10.3906/bot-1110-18 On the rediscovery of Euphorbia amygdaloides subsp. robbiae and its type 1 Levent CAN1, Osman EROL2, Gill CHALLEN3, Orhan KÜÇÜKER2 Biology Department, Faculty of Arts and Sciences, Namık Kemal University, 59030, Tekirdağ - TURKEY 2 Botany Department, Faculty of Science, İstanbul University, 34116, İstanbul - TURKEY 3 Herbarium, Royal Botanic Gardens, Kew, Richmond, Surrey TW9 3AE - UK Received: 19.10.2011 ● Accepted: 20.06.2012 Abstract: Euphorbia amygdaloides L. subsp. robbiae (Turrill) Stace was first collected by Mrs Mary Anne Robb. She collected a wild growing Euphorbia L. specimen in 1891 from an unknown locality near İstanbul, and carried this plant in a bonnet box to England. Since 1891, this well-known cultivated plant has not been collected from any wild locality. This paper reports the wild specimens from İstanbul with morphological detail. We also present the composite image illustrations of the specimen, and images of the type specimen. The article also reveals that the date of the type specimen of Euphorbia amygdaloides subsp. robbiae does not match the literature, and it is proposed that the specimen dated 12 May 1949 be treated as the holotype. This paper explains why a lectotypification of the specimen is unnecessary. Key words: Euphorbia amygdaloides, Euphorbia robbiae, Euphorbiaceae, İstanbul Introduction With over 2150 species (Bruyns et al., 2006), Euphorbia L. (Euphorbiaceae) is one of the largest genera of flowering plants. The genus is also one of the most diverse genera; life forms from herbaceous annuals to trees are present, but it is best known for its cactus-like succulent forms, which we can see in almost every textbook, under the title ‘convergent evolution’. In Turkey, Euphorbia is represented by more than 90 species (Radcliffe-Smith, 1982), with highest diversity in the Mediterranean region. The Mediterranean region of Turkey has one of the .
