To see accurate pricing, please choose your delivery country.
 
 
United States
£ GBP
All Shops
We're still open for business - read our EU and Covid-19 statements

British Wildlife

8 issues per year 84 pages per issue Subscription only

British Wildlife is the leading natural history magazine in the UK, providing essential reading for both enthusiast and professional naturalists and wildlife conservationists. Published eight times a year, British Wildlife bridges the gap between popular writing and scientific literature through a combination of long-form articles, regular columns and reports, book reviews and letters.

Subscriptions from £40 per year

Conservation Land Management

4 issues per year 44 pages per issue Subscription only

Conservation Land Management (CLM) is a quarterly magazine that is widely regarded as essential reading for all who are involved in land management for nature conservation, across the British Isles. CLM includes long-form articles, events listings, publication reviews, new product information and updates, reports of conferences and letters.

Subscriptions from £22 per year
Academic & Professional Books  Botany  Plants & Botany: Biology & Ecology

A Phylogenetic Monograph of Mentzelia Section Bartonia (Loasaceae)

Identification Key Monograph
Series: Systematic Botany Monographs Volume: 110
By: John J Schenk(Author), Larry Hufford(Author)
230 pages
A Phylogenetic Monograph of Mentzelia Section Bartonia (Loasaceae)
Click to have a closer look
  • A Phylogenetic Monograph of Mentzelia Section Bartonia (Loasaceae) ISBN: 9781943751105 Paperback Dec 2020 Usually dispatched within 1-2 months
    £64.99
    #256175
Price: £64.99
About this book Customer reviews Related titles

About this book

Mentzelia sect. Bartonia (Loasaceae) is the most species-rich of the six sections of Mentzelia. The section consists of overwintering annuals, biennials, and short- to long-lived, sometimes subshrubby perennials whose geographic ranges are centred primarily in western North America. Synapomorphies that support its monophyly include winged seeds that are horizontally positioned in capsules, seed testal microsculpture consisting of straight, wavy, or sinuate anticlinal cell walls with 4–106 papillae per cell, and broadened filaments (without distal flanges) on the outermost stamens positioned opposite the sepal lobes. Monophyly of the section is well supported by molecular characters from plastid and nuclear DNA. Despite the distinctiveness of species in sect. Bartonia from those of other sections, patterns of variation within the section have led to taxonomic difficulties that have obscured our understanding of diversity within the section. We applied a phylogenetic approach with DNA sequence data, sampled widely across geographic and taxic entities, including multiple populations of putatively morphologically variable and geographically disjunct species, to assess partitioning of morphological diversity among lineages in sect. Bartonia. The authors identified two major lineages that diverged early in sect. Bartonia. The first lineage, clade 1, includes M. multiflora, M. humilis, M. pumila, M. laevicaulis, and relatives. The second lineage, clade 2, includes M. decapetala, M. multicaulis, M. argillosa, and relatives, many of which are subshrubby, short-lived perennial species centred geographically in the intermountain West. The lineages we reconstructed served as a basis for taxonomic revision, and our results are consistent with the recognition of 51 species, including three with varieties. This number of species is nearly twice that recognized in earlier Mentzelia monographs. Types are reviewed, and names are lectotypified as necessary. Character synopses, including taxonomically critical seed microsculpture data and floral petal and stamen shape series, distribution maps, conservation status, and taxonomic keys (including a separate key to the eight taxa that occur in Mexico) are provided for the species and varieties.

Customer Reviews

Identification Key Monograph
Series: Systematic Botany Monographs Volume: 110
By: John J Schenk(Author), Larry Hufford(Author)
230 pages
Current promotions
The Secret Life of the AdderBushnell CORE DS No Glow Trail Camera OfferCollins Bird Guide (New Edition)Browse our 2022 Equipment Catalogues