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Haurn N, Shaheen S, Ahmed M, Bibi F, Fatima K, Ramzan S, Bashir H. Light and scanning electron microscopic imaging of leaf transverse sections of indigenous fodder grasses of central Punjab, Pakistan. Microsc Res Tech 2022; 85:2497-2513. [DOI: 10.1002/jemt.24104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 02/09/2022] [Accepted: 02/23/2022] [Indexed: 11/12/2022]
Affiliation(s)
- Nidaa Haurn
- Department of Botany, Faculty of Life Sciences University of Okara Okara Pakistan
| | - Shabnum Shaheen
- Department of Botany Lahore College for Women University Lahore Pakistan
| | - Mushtaq Ahmed
- Department of Plant Sciences Quaid i Azam University Islamabad Pakistan
| | - Fozia Bibi
- Department of Botany Rawalpindi Women University Rawalpindi Pakistan
| | - Kaneez Fatima
- Department of Botany, Faculty of Life Sciences University of Okara Okara Pakistan
| | - Sehrish Ramzan
- Department of Botany Government Science College Lahore Pakistan
| | - Hira Bashir
- Department of Botany, Faculty of Life Sciences University of Okara Okara Pakistan
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Aiken SG, McJannet CL, Consaul LL, Dallwitz MJ. Biodiversity among Festuca (Poaceae) in North America: diagnostic evidence from DELTA and clustering programs, and an INTKEY package for interactive, illustrated identification and information retrieval. ACTA ACUST UNITED AC 1997. [DOI: 10.1139/b97-867] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Biodiversity among taxa of Festuca occurring in North America has been investigated from a revised and illustrated database developed using the DELTA software package. The database includes common names; the place of valid publication of the name; the location of type specimens, when known, and whether we have examined them; synonymy; data on morphology, anatomy, and chromosome number(s); habitat and distribution information; subgeneric classification; taxonomic notes; and more than 200 images. The data are available on the Internet via the World Wide Web (WWW) at http://www.keil.ukans.edu/delta/or by anonymous file transfer protocol (ftp) from ftp.keil.ukans.edu, as natural-language descriptions and as an INTKEY interactive identification and information-retrieval package for MS-Windows. INTKEY and other DELTA programs have been used to assess biodiversity and have supported recognition of several species that have often been placed into synonymy (e.g., Festuca calligera and Festuca earlei), a status change for Festuca idahoensis subsp. roemeri comb.nov., placing Festuca brachyphylla subsp. breviculmis into synonymy with F. brachyphylla subsp. coloradensis, and suggested a taxonomy that is presented in an annotated list. Phenetic and cladistic analyses suggest that the traditional generic limits of Festuca and Lolium should be retained and four subgenera recognized within Festuca, subgg. Festuca, Leucopoa, Schedonorus, and Subulatae, with sects. Subulatae and Obtusae. Key words: DELTA, Festuca, Lolium, Poaceae, biodiversity, WWW, taxonomy.
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Abstract
Sixty-one chromosome number determinations in Festuca rubra L. from eastern Canada show that hexaploids plants (n = 21) are found in both natural habitats and ruderal places, octoploids rhizomatous plants (n = 28) are mostly found in ruderal places, but also in disturbed natural habitats. Morever, one aneuploid (2n = ca. 48) is found from a natural habitat and intercytotype hybrids are found in ruderal places or disturbed natural habitats. Key words: Festuca rubra, cytotypes, hybrids.
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