Pollen types in the lauraceae

Merwe, Jacoba J.M. van der; Wyk, Ben‐Erik Van; Kok, P.D.F.

doi:10.1080/00173139009427751

Cited by 34 publications

(10 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…As the dominant taxon in the wetland, the destruction of Cyperaceae causes a decrease in total pollen concentration. The fragility and poor pollen preservation of Lauraceae (growing in the area of investigation) in surface samples, and its breakdown under acetolysis, accounts for its lack of representation (Walker 1976;Van der et al 1990;Rowley & Vasanthy 1993). The structure and ornamental differences of exines can affect pollen preservation in our study area.…”

Section: Discussionmentioning

confidence: 80%

Modern pollen and its ecological relationships with the tropical deciduous forests of central Uttar Pradesh, India

Tripathi¹,

Arya

Basumatary³

et al. 2015

Palynology

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 80%

Modern pollen and its ecological relationships with the tropical deciduous forests of central Uttar Pradesh, India

Tripathi¹,

Arya

Basumatary³

et al. 2015

Palynology

View full text Add to dashboard Cite

“…The taxonomical study of morphological features and molecular phylogeny, etc., have been reported previously (Raj and Werff 1988; Van der Merwe et al 1990;Christophel et al 1996;Heo et al 1998;Rohwer 2000;Nishida and Van der Werff 2007;Rohwer et al 2009). In general, the division of the family according to inflorescence structure and palynology is consistent (Kostermans 1957;Raj and Werff 1988), and results of wood and bark anatomy researches are similar with those of embryological studies (Van Der Werff and Richter 1996;Heo et al 1998).…”

Section: Introductionmentioning

confidence: 82%

Comparative wood anatomy of 56 species of Lauraceae from Yunnan, China

Sun

Wang

et al. 2015

Braz. J. Bot

View full text Add to dashboard Cite

Wood anatomy of 56 species from 11 genera of Lauraceae collected from Yunnan, China were investigated by light and scanning electron microscopy. Detailed descriptions and comparisons of wood anatomy of different species are given in the paper to help better identification of Lauraceae wood. The qualitative and quantitative data show that wood structures are very similar among the Lauraceae studied. They are almost diffuse-porous, mainly solitary, minority radial, or diagonal multiples. Vessels have simple perforation and scalariform perforation, and the bars of scalariform perforation have bifurcations. The intervessel pits are almost alternate. Wood rays are uniseriate and multiseriate, with the former being relatively rare. All species have axial parenchyma, most of which are vasicentric. The species of Beilschmiedia and Syndiclis marlipoensis also have marginal parenchyma. Oil and mucilage cells are common in axial parenchyma and ray cells. Wood fibers are composed of libriform fibers and fiber tracheids. Many species have abundant septate fibers. Individual differences are found in several species, which may be related to genetic or environmental factors. We have roughly concluded that Beilschmiedia and S. marlipoensis have a close affiliation for they both have simple perforated plates and marginal parenchyma but with no septate fibers. Almost all species of Litsea, Neolitsea, and Actinodaphne obovata have septate fibers, simple and scalariform perforate plate, and scanty paratracheal and vasicentric parenchyma, indicating that they might be sister taxa.

show abstract

“…Pollen of most Lauraceae possess spinulose sculpture, but that of Neocinnamomum is smooth, and that of Caryodaphnopsis is verruculose and closer to the smooth pattern than to the spinulose pattern. Both Caryodaphnopsis and Neocinnamomum, were ascribed to pollen type C by van der Merwe et al (1990).…”

Section: Systematic Implication Of the Double Layered Lower Leaf Epidmentioning

confidence: 98%

“…Pollen grains of Lauraceae are usually spinulose, but rarely verruculate or striated. Caryodaphnopsis shows similarity to Cassytha and Neocinnamomum in having a verrucate surface without spines (Tang and Shang, 1995;van der Merwe et al, 1990).…”

Section: Introductionmentioning

confidence: 97%