Anatomy of the Dicotyledons.

TL;DR: Scanning electron microscopy of foliar surfaces of the seven species ofFraxinus native in eastern North America confirms the importance of cuticular patterns (smooth, striated, striate-papillose, and coronulate) as useful taxonomic character states.

...read moreread less

Abstract: Scanning electron microscopy of foliar surfaces of the seven species ofFraxinus native in eastern North America confirms the importance of cuticular patterns (smooth, striated, striate-papillose, and coronulate) as useful taxonomic character states. There are there trichome types (acicular hairs ornamented with micro-striae or-papillae, peltate glands, and scales) which are found in nearly all species and which vary only in density. No differences in surface features are found by which determination can be made of either sex or ploidy level inF. americana. Hybridization betweenF. americana andF. pennsylvanica is considered to be rare in nature and is not a probable cause for the overlap of character states and concomitant difficulty of identification based upon gross morphological features. Likewise, the putative hybrid origins ofF. biltmoreana andF. profunda are not supported by micro-morphological features. Illustrations are given for all species.

...read moreread less

19 citations

Journal Article•DOI•

Force of habit: shrubs, trees and contingent evolution of wood anatomical diversity using Croton (Euphorbiaceae) as a model system.

[...]

Rafael Arévalo¹, Rafael Arévalo², Benjamin W. van Ee³, Ricarda Riina⁴, Paul E. Berry⁵, Alex C. Wiedenhoeft², Alex C. Wiedenhoeft¹ - Show less +3 more•Institutions (5)

University of Wisconsin-Madison¹, United States Forest Service², University of Puerto Rico at Mayagüez³, Spanish National Research Council⁴, University of Michigan⁵

01 Mar 2017-Annals of Botany

TL;DR: Novel putatively functional trait associations are hypothesized in woody plant structure that could be further tested in a variety of other taxa, and the interplay between habit, habitat and wood anatomical diversity was dissected in the genus Croton.

...read moreread less

19 citations

Journal Article•DOI•

Leaf anatomical studies of Chamaecrista subsect. Baseophyllum (Leguminosae, Caesalpinioideae): new evidence for the up-ranking of the varieties to the species level

[...]

Ítalo Antônio Cotta Coutinho¹, Dayana Maria Teodoro Francino, Renata Maria Strozi Alves Meira¹•Institutions (1)

Universidade Federal de Viçosa¹

19 Jul 2013-Plant Systematics and Evolution

TL;DR: In this article, morphoanatomical characters of the leaves of the species of Chamaecrista sect. baseophyllum were determined using standard light microscopy techniques and histochemical tests.

...read moreread less

Abstract: This study aims to determine whether morphoanatomical characters of the leaves of the species of Chamaecrista sect. Absus subsection Baseophyllum could be used to support an up-ranking of C. cytisoides varieties to the species level as previously defined by molecular studies. The significance of anatomical adaptive strategies to arid environments is also discussed. Standard light microscopy techniques and histochemical tests were used for both morphoanatomical and histochemical characterization of the leaves. All the species studied share a single-layered epidermis, actinodromous–camptodromous–brochidodromous type of venation, vascular bundles surrounded by layers of fibers bounded externally by a sheath of cells containing solitary crystals, enlarged tracheids at the vein endings, vascular petiole/rachis tissue with a parenchymatous pith, accessory vascular bundles, mucilage idioblasts and hypodermis in the mesophyll, colleters, and non-secretory trichomes. The position and type of stomata, type of mesophyll, number of palisade and spongy parenchyma layers, position of mucilage idioblasts in the mesophyll, and the number of accessory vascular bundles of petiole/rachis provided useful characters for discriminating the eight species of the subsect. Baseophyllum. Histochemical tests reveal the presence of total polysaccharides, pectins, mucilage and phenolic compounds in the idioblasts. Other xeromorphic characters such as thickened outer periclinal cell walls, compact mesophyll, mucilage idioblasts and hypodermis in the mesophyll may help enable the studied species to survive in exposed sunny areas.

...read moreread less

19 citations

Cites background or methods or result from "Anatomy of the Dicotyledons."

...…accessory vascular bundles and layers of fibers bounded externally by a sheath of cells containing solitary crystals have already been reported for Chamaecrista (Solereder 1908; Metcalfe and Chalk 1950; Francino et al. 2006) and other Leguminosae genera (Lersten and Curtis 1994, 1995; Luckow 2002)....
[...]
...Enlarged tracheids (tracheoids) at the vein endings, accessory vascular bundles and layers of fibers bounded externally by a sheath of cells containing solitary crystals have already been reported for Chamaecrista (Solereder 1908; Metcalfe and Chalk 1950; Francino et al. 2006) and other Leguminosae genera (Lersten and Curtis 1994, 1995; Luckow 2002)....
[...]
...and straight to sinuous outline of the anticlinal cell wall of the epidermal have been reported in other Caesalpinioideae legumes (Solereder 1908; Metcalfe and Chalk 1950; Lackey 1978; Rezende et al. 1994; Luckow 2002)....
[...]
...Moreover, anatomical and micromorphological data have proved useful as a tool to support taxonomic studies in the family Leguminosae (Solereder 1908; Metcalfe and Chalk 1950; Lackey 1978; Metcalfe and Chalk 1979; Owens and Lewis 1989; Luckow 2002; Saheed and Illoh 2010)....
[...]
...Both epistomatic and amphistomatic leaves and straight to sinuous outline of the anticlinal cell wall of the epidermal have been reported in other Caesalpinioideae legumes (Solereder 1908; Metcalfe and Chalk 1950; Lackey 1978; Rezende et al. 1994; Luckow 2002)....
[...]

Journal Article•

Evidence from micromorphology and gross morphology of the genus Loranthus (Loranthaceae) in Iran

[...]

Robabeh Shahi Shavvon, Shahryar Saeidi Mehrvarz¹, Narges Golmohammadi•Institutions (1)

University of Gilan¹

21 Nov 2012-Turkish Journal of Botany

TL;DR: An inclusive gross morphological and micromorphological study was conducted to investigate the range of morphological variation in different populations of these species, resulting in 2 distinct groups of Loranthus europaeus and L. grewingkii.

...read moreread less

Abstract: The genus Loranthus L. (Loranthaceae) is represented in Iran by 2 species: Loranthus europaeus Jacq. and L. grewingkii Boiss. & Buhse; the latter species is endemic to the area of Flora Iranica. The plants of Loranthus are hemiparasites growing on various host trees such as Quercus infectoria Oliv., Acer monspessulanum L., and Armeniaca vulgaris Lam. In order to investigate the range of morphological variation in different populations of these species, an inclusive gross morphological and micromorphological study was conducted. For this purpose, the anatomical characteristics of the stem, leaf, petiole, and fruit were also investigated. The most prominent features were the presence or absence of calcium oxalate crystals, their types, and distribution. In general, 3 types of wax crystalloid structures are identified on the leaf surface, including irregular glandular as well as platelet in L. grewingkii and smooth in L. europaeus. The crystalloid structures of the wax allow differentiation of both species. Seed surface ornamentation demonstrates little difference among these taxa. The seed surface is deeply wrinkled in L. europaeus and shallowly wrinkled in L. grewingkii. Finally, 62 qualitative characters were scored and analysed by both cluster analysis and principle component analysis (PCA), resulting in 2 distinct groups.

...read moreread less

19 citations

Journal Article•DOI•

Geographic Leaf Cuticular and Gross Morphological Variations in Liquidambar styraciflua L. and Their Possible Relationship to Environmental Pollution

[...]

G. K. Sharma, Jane Tyree

01 Sep 1973-Botanical Gazette

TL;DR: Samples of Liquidambar styraciflua L. were studied to determine the relationship between environmental pollution, ecotypic differentiation, and variation in leaf cuticular and gross morphological expression.

...read moreread less

Abstract: Samples of Liquidambar styraciflua L. were studied to determine the relationship between environmental pollution, ecotypic differentiation, and variation in leaf cuticular and gross morphological expression. Twenty-six samples from Tennessee and Kentucky covering a wide variety of habitats were investigated for cuticular and morphological features. The data were analyzed statistically. A relationship between environmental pollution and cuticular and morphological features is indicated, but final conclusions cannot be made since environmental pollution levels were not monitored.

...read moreread less

19 citations

Collapse

Anatomy of the Dicotyledons.

Citations

Cites background or methods or result from "Anatomy of the Dicotyledons."

Related Papers (5)