Morphoanatomy and phylogenetics reveals a distinct species of Oxalis sect. Polymorphae (Oxalidaceae) from the Brazilian Atlantic forest

被引：8

作者：

Richetti, Everton ^{[1
]}

Costa, Tiago S. ^{[2
]}

Cabral, William S. ^{[3
]}

Fiaschi, Pedro ^{[3
]}

Sakuragui, Cassia M. ^{[4
]}

Lusa, Makeli G. ^{[3
]}

机构：

[1] Univ Fed Santa Catarina, Ctr Ciencias Biol, Programa Posgrad Biol Fungos Algas & Plantas, BR-88040900 Florianopolis, SC, Brazil

[2] Univ Fed Rio de Janeiro, Lab Integrad Sistemat Vegetal, Programa Posgrad Bot, BR-21941902 Rio De Janeiro, RJ, Brazil

[3] Univ Fed Santa Catarina, Ctr Ciencias Biol, Dept Bot, BR-88040900 Florianopolis, SC, Brazil

[4] Univ Fed Rio de Janeiro, Inst Biol, Dept Bot, BR-21941902 Rio De Janeiro, RJ, Brazil

来源：

PLANT SYSTEMATICS AND EVOLUTION | 2022年 / 308卷 / 02期

关键词：

Atlantic forest; Leaf anatomy; Micromorphology; Taxonomy; Trichomes; Vascular system; COMPARATIVE LEAF ANATOMY; SEQUENCE ALIGNMENT; VENATION PATTERNS; USEFUL CHARACTERS; MORPHOLOGY; ARCHITECTURE; LEGUMINOSAE; INTERFACE;

D O I：

10.1007/s00606-022-01807-1

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Morphoanatomical features can provide useful information for plant taxonomy. In Oxalis sect. Polymorphae (Oxalidaceae) there are currently 12 accepted species, mostly from the Brazilian Atlantic Forest, but the historical recognition of some infraspecific taxa may have resulted in underscored species richness. Integrated analyses of additional types of data are critical to evaluate if some taxa would be better recognized at species level. To evaluate this, we carried out leaf morphoanatomical analysis of O. neuwiedii subsp. neuwiedii and O. neuwiedii subsp. pardoensis and a phylogenetic analysis of nrITS sequences. Both leaf morphoanatomy and phylogenetics lend support to recognize O. neuwiedii subsp. pardoensis at species level. Leaflet venation pattern, epidermal cell outline, hair-covering, vascular conformation of the pulvina, and tissue organization in the midvein were the main morphoanatomical diagnostic features for the recognition of two species instead of a single one. A new rank and the second-step lectotypification are proposed for this taxon, raising to 13 accepted species in O. sect. Polymorphae.

引用

页数：15

共 59 条

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