In:
PhytoKeys, Pensoft Publishers, Vol. 182 ( 2021-10-04), p. 125-148
Abstract:
In this study, we sampled 48 species of Asian Cinnamomum covering the species groups that were identified in recent phylogenetic studies and conducted leaf micromorphological observations using both light microscopy (LM) and scanning electron microscopy (SEM). Synapomorphies were determined by means of mapping micromorphological characters on a phylogenetic tree. The results indicate that Cinnamomum exhibits two different types of leaf upper epidermis: Type I has smooth/non-reticulate periclinal walls whereas Type II has reticulate periclinal walls and is unusual in the family Lauraceae. We found that the two types of micromorphological characters are clade-specific, sect. Camphora s.s. possesses Type I leaf upper epidermis, and sect. Cinnamomum s.l. has Type II leaf upper epidermis. Our study also reveals that C. saxatile , a member of sect. Camphora s.l. in the traditional classification, actually has Type II leaf upper epidermis, thus reinforcing the result of a recent molecular phylogeny that has this species in a clade consisting mainly of species of sect. Cinnamomum.
Type of Medium:
Online Resource
ISSN:
1314-2003
,
1314-2011
DOI:
10.3897/phytokeys.182.67289
DOI:
10.3897/phytokeys.182.67289.figure1
DOI:
10.3897/phytokeys.182.67289.figure10
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10.3897/phytokeys.182.67289.figure11
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10.3897/phytokeys.182.67289.figure2
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10.3897/phytokeys.182.67289.figure3
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10.3897/phytokeys.182.67289.figure4
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10.3897/phytokeys.182.67289.figure5
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10.3897/phytokeys.182.67289.figure6
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10.3897/phytokeys.182.67289.figure7
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10.3897/phytokeys.182.67289.figure8
DOI:
10.3897/phytokeys.182.67289.figure9
DOI:
10.3897/phytokeys.182.67289.suppl1
Language:
Unknown
Publisher:
Pensoft Publishers
Publication Date:
2021
detail.hit.zdb_id:
2579891-1
