Identifications and Typifications of Rosa (Rosaceae) Taxa in North America Described or Used by E. W. Erlanson, 1925-1934

被引：3

作者：

Lewis, Walter H. ^{[1
,2
]}

Reznicek, Anton A. ^{[3
]}

Rabeler, Richard K. ^{[3
]}

机构：

[1] Washington Univ, Dept Biol, St Louis, MO 63130 USA

[2] Missouri Bot Garden, St Louis, MO 63166 USA

[3] Univ Michigan, Herbarium, Ann Arbor, MI 48108 USA

来源：

NOVON | 2012年 / 22卷 / 01期

关键词：

E; W; Erlanson; North America; Rosa; Rosaceae; University of Michigan;

D O I：

10.3417/2011032

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

During her main publication period at the University of Michigan from 1926 to 1937, E. W. Erlanson described 18 new Rosa L. species and varieties (Rosaceae), most from the midwestern United States. The majority were grown and hybridized at the University of Michigan Botanical Garden, where she collected many specimens for the University of Michigan Herbarium (MICH) over a period of years. Some living collections were hers, but most were from others who sent living plants usually without voucher specimens. For this reason and the inability until recently to use sheets as types from living collections under specific circumstances, type selections were at times inappropriate. Nevertheless, seven (almost half) of the cited holotypes here are in MICH, in addition to three lectotypes designated here, as well as isotypes and isolectotypes. A total of 40 taxa with either type data or in synonymy are identified in 10 categories of Rosa species, subspecies, and nothospecies following the Flora of North America treatment. Lectotypes are designated here for the following 19 names: R. acicularioides Schuette, R. acicularis Lindl. var. bourgeauiana Crep., R. arkansana Porter, R. blanda Aiton fo. carpohispida Schuette, R. blanda var. glandulosa Schuette, R. blanda var. hermannii Erlanson, R. blanda var. nuda Schuette, R. blanda var. subgeminata Schuette, R. californica Cham. & Schltdl., R. carolina L. var. aculeata (Schuette) Erlanson, R. carolina var. litoralis Erlanson, R. deamii Erlanson, R. gemella Willd., R. nitida Mild., R. carolina var. inermis Schuette, R. carolina var. sepalorelevata Schuette, R. pensylvanica Michx., R. Xrudiuscula (Greene) Erlanson, and R. suffulta Greene var. valida Erlanson. One neotype is designated, R. palustris. In addition, holotypes of the following taxa are identified for the first time: R. blanda var. setigera Crep., R. blanda var. hispida Farw., and R. blanda fo. alba (Schuette ex Erlanson) Fernald.

引用

页码：32 / 42

页数：11

共 21 条

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[2]

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[3]

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[4]

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[10]

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