Lectotypification of three Indian endemic taxa of Pittosporum (Pittosporaceae)

Three recognized Indian endemic taxa of Pittosporum Banks. ex Gaertn. are lectotypified, namely Pittosporum dasycaulon Miq., P. humile Hook. f. & Thomson, and P. neelgherrense Wight & Arn. | Turkish Journal of Botany Research Note Turk J Bot (2016) 40: 557-560 © TÜBİTAK doi: Lectotypification of three Indian endemic taxa of Pittosporum (Pittosporaceae) Rajeev KUMAR SINGH* Botanical Survey of India, Southern Regional Centre, TNAU Campus, Coimbatore, Tamil Nadu, India Received: Accepted/Published Online: Final Version: Abstract: Three recognized Indian endemic taxa of Pittosporum Banks. ex Gaertn. are lectotypified, namely Pittosporum dasycaulon Miq., P. humile Hook. f. & Thomson, and P. neelgherrense Wight & Arn. Key words: Endemic, India, isolectotype, lectotype, Pittosporum, syntype 1. Introduction The genus Pittosporum Banks. ex Gaertn. consists of about 200 species worldwide (Mabberley, 2008). Ten recognized species are presently found in India (Nayar and Giri, 1993; Singh and Diwakar, 2009), of which four species are endemic to different states (Singh and Diwakar, 2009). During systematic studies of the genus Pittosporum in India, the author realized the necessity to lectotypify three species endemic to India, because no specific herbarium sheet was cited as holotype in their protologues and the taxa were also not lectotypified earlier (Gowda, 1951; Nayar and Giri, 1980, 1993; Singh and Diwakar, 2009). Therefore, the three binomials of these endemic taxa were lectotypified here to avoid any ambiguity in the application of these names. The guidelines of Art. and recommendations 9A, 9C, and 9D of the Melbourne Code (McNeill et al., 2012) have been followed while designating the lectotypes. 2. Materials and methods The three recognized Indian endemic species Pittosporum dasycaulon Miq., P. humile Hook. f. & Thomson and P. neelgherrense Wight & Arn. were critically studied taxonomically and it was found necessary to select the lectotypes for these names. Pertaining to the specifications given in protologues of these three species, type specimens were .

Bấm vào đây để xem trước nội dung
TÀI LIỆU MỚI ĐĂNG
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.