A New Combination in Linanthus (Polemoniaceae) from Idaho and Oregon

2012·0.81 MB·English

by  Joanna L Schultz

Madrono, Vol. 59, No. 3, p. 163, 2012
A NEW COMBINATION IN LINANTHUS (POLEMONIACEAE) FROM IDAHO
AND OREGON
Joanna Schultz
L.
1060 Driscoll Ridge Road, Troy, ID 83871
Robert Patterson
CA
Department of Biology, San Francisco State University, San Francisco, 94132
[email protected]
Abstract
In preparing the treatment for Polemoniaceae for the Flora North America North of Mexico it is
necessary to propose a new combination in Limmthus (Polemoniaceae).
Key Words: Endemism, Leptodactylon, Limmthus, Polemoniaceae.
As many as 10 infraspecific taxa have been leaf lobes, while subsp. pungens has alternate,
recognized for Leptodactyloii pungens (Torr.) acicular, sharp-tipped distal leaf lobes. Meinke
Nutt. (IPNI 2008), and while floristic treatments (1988) and Moseley (1989) provide careful and
have differed in use of infraspecific taxa, we complete discussions of the distinctive features
consider Leptodactylon pungens subsp. hazeliae and habitat of the subspecies, including comment
(Peck) Meinke distinctive and warranting recog- on its rarity.
nition. When Porter and Johnson (2000) revised Descriptions and discussions of infraspecific
the taxonomy of Polemoniaceae, conforming to taxa of Linanthus pungens have been inconsistent
the goal of recognizing only monophyletic and often lacking in detail; however, analytical
genera, they transferred all seven species formerly approaches have improved since these taxa were
recognized as Leptodactylon to Linanthus; how- described, and there are more botanists today
ever, they did not consider infraspecific taxa that who can contribute valuable field information.
had previously been recognized in Leptodactylon Therefore, it seems an appropriate time for a
pungens. In preparation for the treatment of thorough systematic study of Linanthus pungens
Linanthus for the Flora North America north of
throughout its range.
Mexico project, a new combination is required:
Linanthus pungens subsp. hazeliae.
Literature Cited
Taxonomic Treatment
The International Plant Names Index. 2008.
Linanthus pungens (Torr.) J. M. Porter & L. A. Published on the internet. Website http://www.
& ipni.org/index.html [accessed 17 June 2011].
Johnson subsp. hazeliae (Peck) J. L. Schultz Meinke, R. J. 1988. Leptodactylon pungens subsp.
R.Patt., comb. nov. Basionym: Leptodactylon hazeliae (Polemoniaceae), a new combination for a
hazelae Peck, Proc. Biol. Soc. Wash. 49:1 1 1. 1936; Snake River endemic. Madroiio 35:105-111.
L. pungens subsp. hookeri (Dougl. ex Hook.) MosELEY, R. K. 1989. Field investigations of Lepto-
Wherry f. hazelae (Peck) Wherry, Amer. Midi. dactylon pungens ssp. hazeliae (Hazel's prickly
Naturalist 34:383; L. pungens subsp. hazeli—ae phlox) and Mirahilis nuicfarlanei (Macfarlane's
(Peck) Meinke, Madroiio 35(2):107. 1988. four-o-clock), region 4 sensitive species, on the
Type: USA, Oregon, Wallowa Co., dry rocky Payette National Forest, with notes on Astragahts
slope, Snake River Canyon near mouth ofBattle vallaris (Snake Canyon milkvetch) and Ruhus
Creek, 13 April 1934, Barton s.n. (holotype: hartonianus (bartonberry). Technical Report, Idaho
WILLU Department of Fish and Game, Boise, ID.Website
18415).
https://fishandgame.idaho.gov/ifwis/idnhp/cdc_pdf/
Linanthus pungens subsp. hazeliae is a rare and moser89k.pdf [accessed 28 March 2012].
very narrow endemic to the Snake River Canyon
Peck, M. E. 1936. Six new plants from Oregon.
region that forms part of the Idaho-Oregon
Proceedings of the Biological Society of Washing-
border. It occurs within the overall range of ton 49:111.
Linanthus pungens subsp. pungens, but the two Porter, J. M. and L. A. Johnson. 2000. A
subspecies are not sympatric. Linanthus pungens phylogenetic classification of Polemoniaceae. Aliso
subsp. hazeliae has opposite, soft-filiform distal 19:55-91.