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Pogogyne Floribunda (Lamiaceae), A New Species From The Great Basin In Northeastern California, James D. Jokerst
Pogogyne Floribunda (Lamiaceae), A New Species From The Great Basin In Northeastern California, James D. Jokerst
Aliso: A Journal of Systematic and Floristic Botany
Pogogyne jloribunda is described as a new endemic species from Lassen and Modoc counties in northeastern California. Its occurrence on the eastern Modoc Plateau of the Great Basin Floristic Province is the first record for the genus outside the California Floristic Province. Pogogyne zizyphoroides also is reported from the Great Basin in Lassen County.
Wood Anatomy Of Lamiaceae. A Survey, With Comments On Vascular And Vasicentric Tracheids, Sherwin Carlquist
Wood Anatomy Of Lamiaceae. A Survey, With Comments On Vascular And Vasicentric Tracheids, Sherwin Carlquist
Aliso: A Journal of Systematic and Floristic Botany
Quantitative and qualitative data are presented for 44 collections representing 42 species in 27 genera. Lamiaceae basically have: vessels with simple perforation plates; vessel-to-vessel pitting alternate; imperforate tracheary elements all libriform fibers, fibers commonly septate; axial parenchyma scanty vasicentric; rays Heterogeneous Type IIB. These features ally Lamiaceae closely with Verbenaceae. In addition to the Mesomorphy ratio (based on vessel element dimensions), features that indicate wood xeromorphy in Lamiaceae, in probable increasing order of importance are: presence of indistinct to marked growth rings; presence of helical thickenings in vessels; presence of vasicentric or vascular tracheids; presence of vessel groups averaging three …