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- Wood anatomy (5)
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Articles 1 - 10 of 10
Full-Text Articles in Botany
Laboulbeniales On Semiaquatic Hemiptera. V. Triceromyces, Richard K. Benjamin
Laboulbeniales On Semiaquatic Hemiptera. V. Triceromyces, Richard K. Benjamin
Aliso: A Journal of Systematic and Floristic Botany
Six species of Triceromyces (Laboulbeniales), including the type, T. balazucii (on Hebridae), parasitic on semiaquatic Hemiptera, were studied at the light-microscopic level. Descriptions are provided for all of the taxa, and features of developmental morphology are described, compared, and illustrated with photographs and line drawings. Four species are described as new: T. hebri (on Hebridae), T. hydrometrae (on Hydrometridae), and T. biformis and T. bullatus (on Mesoveliidae). The species growing on Hebridae and Hydrometridae are monoecious. The two species on Mesoveliidae develop monoecious and dioecious morphs, which occur together on the same host individual. This phenomenon is recognized and described …
Wood Anatomy Of Gesneriaceae, Sherwin Carlquist, David A. Hoekman
Wood Anatomy Of Gesneriaceae, Sherwin Carlquist, David A. Hoekman
Aliso: A Journal of Systematic and Floristic Botany
Qualitative and quantitative data are presented for woods of 37 species representing 11 genera; most species included represent a maximal degree of woodiness for the family, and herbaceous groups are mostly omitted. Growth rings are absent or nearly so. Vessel elements have simple perforation plates (except for Kohleria elegans) and alternate circular or oval pits of various sizes on vessel-vessel walls (often laterally elongate, often with gaping apertures, on vessel-parenchyma and vessel-septate fiber interfaces). Grooves interconnect pit apertures in vessels of four genera. Vessels are grouped, usually in radial chains, to a moderate extent. Tyloses are present. Imperforate tracheary …
Wood Anatomy Of Stilbaceae And Retziaceae: Ecological And Systematic Implications, Sherwin Carlquist
Wood Anatomy Of Stilbaceae And Retziaceae: Ecological And Systematic Implications, Sherwin Carlquist
Aliso: A Journal of Systematic and Floristic Botany
Wood anatomy of ten species in five genera of the Cape Province (South Africa) family Stilbaceae is reported in quantitative and qualitative terms. Wood anatomy for stem, root, and lignotuber is reported for the monotypic Cape genus Retzia. Stilbaceae and Retziaceae are alike in wood anatomy but differ from Verbenaceae by having scalariform perforation plates with few and wide-bordered bars (simple plates and modified scalariform plates are also present); vessel elements clearly fibriform in shape; very scarce axial parenchyma; and long uniseriate wings on multiseriate rays. When added to endosperm presence and ericoid habit, these features may serve to segregate …
Wood Anatomy Of Myoporaceae: Ecological And Systematic Considerations, Sherwin Carlquist, David A. Hoekman
Wood Anatomy Of Myoporaceae: Ecological And Systematic Considerations, Sherwin Carlquist, David A. Hoekman
Aliso: A Journal of Systematic and Floristic Botany
Quantitative and qualitative features are presented for 28 collections of three genera (Bontia, Eremophila, Myoporum); data on Oftia are also included since it is sometimes referred to Myoporaceae. Wood of all Myoporaceae represents variation on a basic plan: woods diffuse porous or semi-ringporous; vessels with simple perforation plates; lateral wall pits of vessels alternate and circular, with grooves interconnecting some pit apertures; vessels grouped to various degrees into radial multiples; imperforate tracheary elements all fiber-tracheids with pit cavities 1-5 μm in diameter (wider on contacts with ray cells), nonseptate; axial parenchyma vasicentric scanty plus, in some …
The Distribution And Phytogeographic Relationships Of The Woody Plants Of The Soviet Far East, Thomas S. Elias
The Distribution And Phytogeographic Relationships Of The Woody Plants Of The Soviet Far East, Thomas S. Elias
Aliso: A Journal of Systematic and Floristic Botany
The woody flora of the Soviet Far East is rich and diverse when compared to dendrofloras at similar latitudes of the world. The bulk of this region lies north of latitude 46 degrees. This area includes the northernmost stations in eastern Asia for many genera, e.g., Abelia, Acer, Aralia, Carpinus, Corylus, Fraxinus, Hydrangea, Ilex, Juglans, Magnolia, Morus, Quercus, Phellodendron, Sasa, Schizophragrna, Schisandra, Skimmia, Syringa, Tilia, and Ulmus. The majority of the woody species native to the Soviet Far East do not occur elsewhere in the U.S.S.R. Many of the trees and shrubs are native to Japan, Korea, or China and …
On The Submersion Of Dicraurus Into Iresine (Amaranthaceae), James Henrickson, Scott Sundberg
On The Submersion Of Dicraurus Into Iresine (Amaranthaceae), James Henrickson, Scott Sundberg
Aliso: A Journal of Systematic and Floristic Botany
The two species of Dicraurus Hook. f. (Amaranthaceae) are shown to be more closely related to different species in Iresine L. than they are to one another. In addition, characters used to distinguish Dicraurus are more widespread within Iresine than was formerly thought, necessitating the merger of Dicraurus into Iresine. The two species as placed in Iresine are I. alternifolia S. Wats. and I. leptociada (Hook. f.) Henrickson & Sundberg. Complete descriptions and distribution maps of the two species are included.
Systematic And Ecological Wood Anatomy Of Californian Scrophulariaceae. Ii. Penstemon Subgenus Saccanthera, David C. Michener
Systematic And Ecological Wood Anatomy Of Californian Scrophulariaceae. Ii. Penstemon Subgenus Saccanthera, David C. Michener
Aliso: A Journal of Systematic and Floristic Botany
Wood anatomy of nonarboreal Scrophulariaceae is little studied, yet such information is needed to understand the evolution of woodiness in the family and order. Description and quantification of wood characters of six species (nine taxa) of Penstemon subgenus Saccanthera show that these woods are specialized. Paedomorphic features include the standard declining-to-level curve of vessel element length by age, and (in several samples) a pronounced tendency to raylessness. Variation in ray characteristics is as great within as between species, suggesting that unsampled populational variation in ray characteristics may be present. Cells intermediate between fibers and nonseptate parenchyma are present and complement …
Floral Pigments Of The Yellow Camellia, Camellia Chrysantha (Theaceae), Ron Scogin
Floral Pigments Of The Yellow Camellia, Camellia Chrysantha (Theaceae), Ron Scogin
Aliso: A Journal of Systematic and Floristic Botany
Floral pigments of Camellia chrysantha consist of three flavonoids (quercimeritrin, rutin, and isoquercitrin) and two xanthophylls (neoxanthin and an unidentified xanthophyll). The transfer of yellow petal coloration from C. chrysantha to other Camellia species may be hampered by interspecific genetic incompatibilities and by the complexities of genetic regulation of biosynthesis of the pigments involved.
Wood Anatomy Of Cassiope (Ericaceae), Gary D. Wallace
Wood Anatomy Of Cassiope (Ericaceae), Gary D. Wallace
Aliso: A Journal of Systematic and Floristic Botany
Wood anatomical characteristics for 21 taxa of Cassiope are reported. Qualitative features differ somewhat from the general pattern of the Ericaceae. However, considerable deviation is found in the quantitative aspects of the wood features. The stems are very slender with narrow growth rings evident in all but one species. Vessel elements are very small and usually have scalariform perforation plates with several bars. Vessels are extremely abundant in transection. Vascular rays are mostly uniseriate with a few biseriates and all are composed exclusively of erect cells. The imperforate elements are tracheids which are the only conductive elements in the late …
Reproductive Phytochemistry Of Bombacaceae, Ron Scogin
Reproductive Phytochemistry Of Bombacaceae, Ron Scogin
Aliso: A Journal of Systematic and Floristic Botany
Floral anthocyanins among Bombacaceae exhibit minimal variation and consist of three commonly occurring cyanidin glycosides. Cyanidin 3-rutinoside occurs uniquely in the genus Pachira among taxa surveyed. Nectars are characterized by copious volumes and being somewhat dilute and hexose rich with respect to sugars. No evidence is detectable among Bombacaceae for a nonfiying-mammal floral chemistry syndrome which is distinguishable from a bat-visitation syndrome.