C. M. Guilliams

Publications26
h-index7
Citations277
Highly Influential Citations16
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The borage family (Boraginaceae s.str.): A revised infrafamilial classification based on new phylogenetic evidence, with emphasis on the placement of some enigmatic genera
SYNTHESYS project by the European Community Research Infrastructure Action under the FP6 "Structuring the European Research Area" GB-TAF-4514 FP7 "Capacities" Programmes ES-TAF-136 AT-TAF-2001…
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Uncorrelated evolution of leaf and petal venation patterns across the angiosperm phylogeny.
TLDR
It was found that floral structures had lower VLA than leaves, but basal angiosperm flowers did not have higherVLA than more derived lineages, and the independent evolution of leaf and petal VLA suggested that these organs may be developmentally modular.
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American amphitropical disjuncts: Perspectives from vascular plant analyses and prospects for future research
TLDR
Some features of AAD vascular plants are reviewed and summarized with suggestions for future research on this topic and an up-to-date compendium of examples are provided.
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Pleistocene radiation of the serpentine-adapted genus Hesperolinon and other divergence times in Linaceae (Malpighiales).
TLDR
Hesperolinon is an excellent example of edaphic neoendemism, in support of Raven and Axelrod's hypothesis for the genus, and the diversification of Linaceae is more recent than previously estimated.
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Familial classification of the Boraginales
TLDR
A consensus classification is proposed here, based on recent molecular phylogenetic studies, morphological characters, and taking nomenclatural stability into consideration, of eleven, morphologically well-defined and clearly monophyletic families, namely the Boraginaceae and Coldeniaceae.
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THE CALIFORNIA PHENOLOGY COLLECTIONS NETWORK: USING DIGITAL IMAGES TO INVESTIGATE PHENOLOGICAL CHANGE IN A BIODIVERSITY HOTSPOT
Abstract The California Phenology Thematic Collections Network (CAP TCN) is a collaborative project that seeks to maximize the value of herbarium specimens and their data, especially for…
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Phylogeny of the popcorn flowers: Use of genome skimming to evaluate monophyly and interrelationships in subtribe Amsinckiinae (Boraginaceae)
TLDR
Although genome skimming verifies the monophyly of many genera and clades of Amsinckiinae, relationships among those clades and along the backbone of the trees remain uncertain, their elucidation possibly a factor of short branch lengths and likely requiring different types of molecular data.
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Memoirs of a frequent flier: Phylogenomics reveals 18 long-distance dispersals between North America and South America in the popcorn flowers (Amsinckiinae).
TLDR
Asynchronous divergence times support the hypothesis of long-distance dispersal by birds as the mechanism of AAD in the subtribe and more generally.
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Cryptantha wigginsii (Boraginaceae): A Presumed Extinct Species Rediscovered
Abstract Cryptantha wigginsii I.M. Johnston (Boraginaceae) had previously been known from a single collection made in April 1931, at a locality 18 miles south of Tijuana, Baja California, Mexico.…
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Patterns and processes of American amphitropical disjunctions: New insights
TLDR
This special issue of the American Journal of Botany is introduced with 12 contributions pertaining to American amphitropical disjunction, which represents the repeated formation of North America–South America sister lineages through dispersal and subsequent diversifi cation on separate continents.
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