Zobrazeno 1 - 10 of 116 pro vyhledávání: '"John J. Skvarla"'
1
Vernonieae (Asteraceae) of southern Africa: A generic disposition of the species and a study of their pollen
Autor: Harold Robinson, Vicki A. Funk, John J. Skvarla
Publikováno v: PhytoKeys
PhytoKeys 60: 49-126
Current and previously included members of the Tribe Vernonieae (Asteraceae) of southern Africa are listed in their presently recognized genera with complete synonymies and keys to genera and species. The genus Vernonia, as presently delimited, does
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2b60eaa3ed7cb8581e31035e8ac8c5a9
http://europepmc.org/articles/PMC4816990
Zobrazit plný text záznamu
2
Pantoporate pollen in the Asteraceae (Vernonieae)
Autor: Harold Robinson, John J. Skvarla
Publikováno v: PhytoKeys
PhytoKeys, Vol 38, Iss 0, Pp 1-13 (2014)
PhytoKeys 38: 1-13
Pantoporate pollen, which occurs sporadically in the Monocots and Dicots, has now been found in Asteraceae in two apparently related genera of the tribe Vernonieae, Polydora Fenzl and Oocephala H.Rob. Disposition of pores in Polydora seems more asymm
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4478e98a409d5f4dee9b311534b0059
https://doi.org/10.3897/phytokeys.38.7495
Zobrazit plný text záznamu
3
Pollen Morphology of the Oklahoma Narrowly Endemic PlantsPhysaria angustifolia(Brassicaceae/Cruciferae) andPenstemon oklahomensis(Plantaginaceae), With Special Reference To Their Natural History
Autor: Amy K. Buthod, John J. Skvarla
Publikováno v: Rhodora. 116:63-82
The morphology, taxonomy, ecology, distribution, and conservation status of the Oklahoma narrow endemics, Physaria angustifolia (Brassicaceae/Crucifereae) and Penstemon oklahomensis (Plantanginaceae), are reviewed and supplemented with original polle
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::968c86b77b12fbd06078b822b2f3f14b
https://doi.org/10.3119/13-12
Zobrazit plný text záznamu
4
Pollen Morphology of the Oklahoma Endemic PlantsLeavenworthia aurea(Brassicaceae/Cruciferae) andPhlox pilosaSubsp.Longipilosa(Polemoniaceae), With Special Reference To Their Natural History
Autor: John J. Skvarla, Amy K. Buthod
Publikováno v: Rhodora. 116:41-62
The morphology, taxonomy, ecology, distribution, and conservation status of the Oklahoma endemics, Leavenworthia aurea (Brassicaceae/Crucifereae) and Phlox pilosa subsp. longipilosa (Polemoniaceae) Pennell, are reviewed and supplemented with original
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::51b1fb0fbdb2c25370fb7e975906d551
https://doi.org/10.3119/13-11
Zobrazit plný text záznamu
6
Recent advances in Compositae (Asteraceae) palynology, with emphasis on previously unstudied and unplaced taxa
Autor: John J. Skvarla, William F. Chissoe, Alexandra H. Wortley, Stephen Blackmore
Publikováno v: Grana. 51:158-179
In this paper, we present advances in studies of Compositae pollen morphology made over the past two years, focusing on the presentation of novel pollen morphological data, the potential systematic implications for presently unplaced taxa, and a bibl
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::063162864952c8c6b3ce43f38412c5fb
https://doi.org/10.1080/00173134.2012.668219
Zobrazit plný text záznamu
7
A New Monotypic Genus,Ananthura, from Tropical Africa (Asteraceae, Vernonieae)
Autor: Harold Robinson, John J. Skvarla
Publikováno v: Novon: A Journal for Botanical Nomenclature. 21:251-255
A new genus, Ananthura H. Rob. & Skvarla (Asteraceae, Vernonieae), is described for Vernonia pteropoda Oliv. & Hiern in Oliv. of Central Africa. The genus has broad median shields on the involucral bracts and lophate, strongly tricolporate pollen. It
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::aecc4ba5a63154ae0550f71daa98e219
https://doi.org/10.3417/2010062
Zobrazit plný text záznamu
8
Genera of the Vernonieae (Asteraceae) of China with a Study of Their Pollen
Autor: Harold Robinson, John J. Skvarla
Publikováno v: Taiwania, Vol 55, Iss 3, Pp 254-272 (2010)
The genera and species of Vernonieae in China are reviewed using revised generic concepts. The recognized genera are Acilepis, Baccharoides, Camchaya, Cyanthillium, Decaneuropsis, Distephanus, Elephantopus, Ethulia, Gymnanthemum, Khasianthus, Monosis
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doajarticles::b161a1ade77c9758bb2770d777c32153
http://tai2.ntu.edu.tw/taiwania/abstract.php?type=abstract&id=1142
Zobrazit plný text záznamu
9
The restoration of the genus Vernonella Sond. (Vernonieae: Asteraceae)
Autor: Harold Robinson, John J. Skvarla
Publikováno v: Proceedings of the Biological Society of Washington. 123:181-192
Vernonella Sond. is restored as a distinct genus from synonymy under Vernonia and Centrapalus. Included are the type species Vernonella africana and 10 additional species with thinly scarious-margined involucral bracts and distinctive small, short-co
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2593f4d4332ffd5a41d11e7347e0ffae
https://doi.org/10.2988/09-28.1
Zobrazit plný text záznamu
10
Pollen morphology and its phylogenetic significance in tribe Sanguisorbeae (Rosaceae)
Autor: John J. Skvarla, Wayne J. Elisens, Kyong-Sook Chung
Publikováno v: Plant Systematics and Evolution. 285:139-148
Pollen grains of tribe Sanguisorbeae (Rosaceae, Rosoideae) were examined using scanning electron microscopy to identify useful characters, test taxonomic and phylogenetic hypotheses among genera, and elucidate pollen character evolution based on a mo
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5aab9e5a3b3c60a3b11f5c08803a3f1c
https://doi.org/10.1007/s00606-009-0262-9
Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání

Omezení vyhledávání
Plný text Recenzováno Digitální knihovna AV ČR
Zdroje