Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- California (3)
- Baja California (2)
- Conservation (2)
- Endemic plants (2)
- Flora (2)
-
- Rare plants (2)
- Vernal pool (2)
- Acer (1)
- Apiaceae (1)
- Arecaceae (1)
- Azima (1)
- Brahea (1)
- Coastal development (1)
- Colonet (1)
- David Douglas (1)
- Dwarf form (1)
- Ecology (1)
- Elymus (1)
- Evolution (1)
- Festuca (1)
- Google Earth (1)
- Grasses (1)
- Great Basin (1)
- Haustorial system (1)
- ITS (1)
- John Work (1)
- Lectotype (1)
- Leymus (1)
- Lolium (1)
- Lomatium nevadense (1)
Articles 1 - 12 of 12
Full-Text Articles in Life Sciences
The Flora Of Greater San Quintín, Baja California, Mexico (2005–2010), Sula E. Vanderplank
The Flora Of Greater San Quintín, Baja California, Mexico (2005–2010), Sula E. Vanderplank
Aliso: A Journal of Systematic and Floristic Botany
The plants of San Quintín (Baja California, Mexico) were documented through intensive fieldwork and collection of herbarium specimens to create a checklist of species. The region is located near the southernmost extent of the California Floristic Province, and the flora is influenced by the adjacent desert to the south. A total of 435 plant taxa were documented, of which 82% are native plants. Almost one in three native plant taxa in Greater San Quintín is a sensitive species, here documented as rare and/or locally endemic, and many taxa have yet to be evaluated fully for rarity and threats. Four major …
A New Variety Of Lomatium Ravenii (Apiaceae) From The Northern Great Basin And Adjacent Owyhee Region, Kimberly M. Carlson, Donald H. Mansfield, James F. Smith
A New Variety Of Lomatium Ravenii (Apiaceae) From The Northern Great Basin And Adjacent Owyhee Region, Kimberly M. Carlson, Donald H. Mansfield, James F. Smith
Aliso: A Journal of Systematic and Floristic Botany
Variability in the group of Lomatium species comprising L. nevadense, L. ravenii, and L. foeniculaceum has led to conflicting classification schemes. While some taxonomists have treated L. ravenii as a distinct species made up of all the populations from California, Nevada, Idaho, and Oregon, others considered L. ravenii to be nothing more than a morphological extreme of L. nevadense. We examined morphological and phylogenetic data from across the range of L. ravenii, concluding that variation in the species warrants varietal distinction. Non-metric multidimensional scaling analysis of 29 populations shows two distinct groups—one from the vicinity of …
Plants Of The Colonet Region, Baja California, Mexico, And A Vegetation Map Of Colonet Mesa, Alan B. Harper, Sula Vanderplank, Mark Dodero, Sergio Mata, Jorge Ochoa
Plants Of The Colonet Region, Baja California, Mexico, And A Vegetation Map Of Colonet Mesa, Alan B. Harper, Sula Vanderplank, Mark Dodero, Sergio Mata, Jorge Ochoa
Aliso: A Journal of Systematic and Floristic Botany
The Colonet region is located at the southern end of the California Floristic Province, in an area known to have the highest plant diversity in Baja California. A preliminary list of vouchered specimens is developed for the area, and a vegetation map for Colonet Mesa is presented. The Colonet region has at least 435 vascular plant taxa, of which 383 are native to Baja California, and 52 are endemic or nearly endemic. This list includes five local endemic taxa known only from the Colonet region, 18 taxa on the California Native Plant Society List 1B of taxa that are "rare, …
Sinker Structure Of Phoradendron Californicum (Viscaceae) Confounds Its Presumed Close Relationship To Other Acataphyllous Species, Rudolf Schmid, Clyde L. Calvin, Carol A. Wilson
Sinker Structure Of Phoradendron Californicum (Viscaceae) Confounds Its Presumed Close Relationship To Other Acataphyllous Species, Rudolf Schmid, Clyde L. Calvin, Carol A. Wilson
Aliso: A Journal of Systematic and Floristic Botany
Phoradendron is the largest genus of New World mistletoes, with about 250 species in two subgenera, Boreales and Aequatoriales, corresponding, respectively, to northern acataphyllous and southern cataphyllous groups. The typically acataphyllous P. californicum of western North America is controversial because recent phylogenetic work has nested it in the southern cataphyllous clade. Seedling establishment, stem anatomy, and endophytic system structure of this species were studied. Seedling haustorial holdfasts have gland cavities, structures considered absent in the Viscaceae clade of Santalales. The stem epidermis has a thick cuticle, deeply sunken stomata, and branched multicellular trichomes. The stem has an outer cortex …
Phylogenetic Evaluation Of Series Delimitations In Section Palmata (Acer, Aceroideae, Sapindaceae) Based On Sequences Of Nuclear And Chloroplast Genes, Jianhua Li
Aliso: A Journal of Systematic and Floristic Botany
Acer section Palmata (Japanese maples) is the largest section within the genus; however, series delimitations within section Palmata have not been evaluated in a phylogenetic context. Both maximum parsimony and maximum likelihood analyses of DNA sequence data of nuclear rDNA ITS and chloroplast genes (ndhF, trnL-trnF, and psbA-trnH) from 23 species of Acer section Palmata show that traditional series do not form individual clades. Results from this study support the most recent taxonomic treatment of Acer that does not recognize any series in section Palmata. Nuclear and chloroplast phylogenies are significantly …
Nomenclatural Changes For Some Grasses In California. Ii., James P. Smith Jr., J. Travis Columbus
Nomenclatural Changes For Some Grasses In California. Ii., James P. Smith Jr., J. Travis Columbus
Aliso: A Journal of Systematic and Floristic Botany
Two additional nomenclatural changes are required for Poaceae treatments that will appear in the second edition of The Jepson Manual: Higher Plants of California. They are Elymus x gouldii and Festuca temulenta. The former corrects a violation of the rule in the International Code of Botanical Nomenclature involving the naming of hybrids, and the latter involves a widely occurring non-native grass in California traditionally assigned to Lolium.
Wood Anatomy Of Family Salvadoraceae From The Indian Subcontinent With Special Reference To The Ultrastructure Of The Vessel Wall, Vishakha Saxena, Sangeeta Gupta
Wood Anatomy Of Family Salvadoraceae From The Indian Subcontinent With Special Reference To The Ultrastructure Of The Vessel Wall, Vishakha Saxena, Sangeeta Gupta
Aliso: A Journal of Systematic and Floristic Botany
The present study describes the wood microstructure of Azima tetracantha, Salvadora oleoides, and S. persica, the members of family Salvadoraceae represented in the Indian Subcontinent. An identification key based on wood anatomical features has been developed for the separation of the species. SEM studies revealed the presence of vesturing in intervessel pits of Salvadora.
Ponderosa Pine Revisited, J. Robert Haller, Nancy J. Vivrette
Ponderosa Pine Revisited, J. Robert Haller, Nancy J. Vivrette
Aliso: A Journal of Systematic and Floristic Botany
We here recognize a new variety, Pinus ponderosa var. pacifica, in the Pacific portion of the species' distribution and present a new combination for Washoe pine as a variety, Pinus ponderosa var. washoensis. In this treatment, we reject the neotype of Pinus ponderosa selected by Lauria and designate instead the branch collected by David Douglas with mistletoe (Arceuthobium campylopodum) as lectotype for Pinus ponderosa. Table 1 compares the distinguishing characters of the North Plateau (typical) variety, the Pacific variety, and the Washoe variety of Pinus ponderosa with a closely related species, Pinus jeffreyi. Figure …
Distribution And Regional Ecology Of Californian Palm Oases Interpreted From Google Earth Images, Richard A. Minnich, Ernesto Franco-Vizcaíno, Mario Salazar-Ceseña
Distribution And Regional Ecology Of Californian Palm Oases Interpreted From Google Earth Images, Richard A. Minnich, Ernesto Franco-Vizcaíno, Mario Salazar-Ceseña
Aliso: A Journal of Systematic and Floristic Botany
The native fan palms of the Baja California peninsula (Mexico) and neighboring southern California (USA) comprise two species each in Washingtonia and Brahea. While these are among the most familiar ornamental palms in the world, many features of their taxonomy, distribution, and environmental relationships remain unresolved. We utilized Google Earth Digital Globe imagery (and limited surveys by air and land) to develop the first map detailing the geographic distribution of palm populations in the Peninsular Range Province (PRP) and used these data to formulate new hypotheses on their biotic and abiotic relationships. We inventoried 15,216 populations covering an area …