Zobrazeno 1 - 10
of 37
pro vyhledávání: '"David J. Keil"'
The second edition of The Jepson Manual thoroughly updates this acclaimed work, the single most comprehensive resource on California's amazingly diverse flora. Integrating the latest science with the results of intensive fieldwork, institutional col
Autor:
David J. Keil, Mark P. Simmons, Vicki A. Funk, Shannon D. Fehlberg, Wendy C. Hodgson, Jennifer Ackerfield
Publikováno v:
Journal of Systematics and Evolution. 58:881-912
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::538b0aa8f83d2d09f37c287f65b7c9ae
https://doi.org/10.1111/jse.12692
https://doi.org/10.1111/jse.12692
Autor:
David J. Keil
Publikováno v:
Madroño. 65:7-9
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c0b9c158402713194987190762984794
https://doi.org/10.3120/0024-9637-65.1.7
https://doi.org/10.3120/0024-9637-65.1.7
Publikováno v:
Madroño. 66:142
Carduus cinereus M.Bieb. populations have been discovered in the Hells Canyon Wilderness of northeastern Oregon and western Idaho. These plants were initially identified as C. pycnocephalus L. They are distinguished from that species by loosely clust
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8609b6e12a8c4dc97cd5ef9785b3ff1
https://doi.org/10.3120/0024-9637-66.4.142
https://doi.org/10.3120/0024-9637-66.4.142
Publikováno v:
Madroño. 60:165-172
Following disturbance, seed pre-treatment is essential for re-establishing many species with low germination rates. However, some seeds, such as those from chaparral plants, do not respond to common horticultural treatments. Instead, methods that mim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d14480667ad4ecf57649d376244012d
https://doi.org/10.3120/0024-9637-60.3.165
https://doi.org/10.3120/0024-9637-60.3.165
Autor:
Mark A Elvin, David J Keil
Publikováno v:
Aliso. 28:59-62
Helianthus inexpectatus is described as a new species from the Newhall Ranch of northern Los Angeles County, California. It is a tetraploid (2n 5 68) perennial that is morphologically similar to—and intermediate in some characters between—the dip
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::88abea85370c394e7de4bea167d7f026
https://doi.org/10.5642/aliso.20102801.05
https://doi.org/10.5642/aliso.20102801.05
Publikováno v:
University of Vienna-u:cris
Previous chromosomal studies within Melampodium (Asteraceae, Heliantheae) of Mexico and Central America have documented chromosome numbers n = 9, 10, 11, 12, 18, 20, 23, 25 ± 1, 27, 30, and 33. Some species also have been shown to exhibit infra- and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5cfafa3a06af7507bb822cd9a64a4e64
https://doi.org/10.3732/ajb.91.6.889
https://doi.org/10.3732/ajb.91.6.889
Autor:
David J. Keil
Publikováno v:
Madroño. 61:248-249
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f18083de9a687495e740a57fc9553838
https://doi.org/10.3120/0024-9637-61.2.248
https://doi.org/10.3120/0024-9637-61.2.248