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Grand Meaa Penatemon
<br />Bse round
<br />Tha Grand ltssa Yeaetemoa (Psnatemon menearum), also knor:t as Tiger
<br />Bsardtongua, 1• endemic to Colorado and knoxn only from lie ea, Delta, and
<br />Gunnison counties. It Se classified by the U. S. Fish and iiildlife Service
<br />(Federal 8agister 58:51179, Sap. 30, 1994) as Category 2, "tau for rhieh
<br />informtion nor in the poeaeseion of the 8erviee indicates that proposing to
<br />fiat ae endangered or threatened is possibly appropriate, but !or rhich
<br />conclusive data on biological vulnerability and threat are not currently
<br />available to support proposed rules." Harringcoa (Manual of the Plante. of
<br />Colorado) gives the habitat as "among oaks or aspenej 7203-~SO~feet
<br />Zxamination of specimens ae the University of Colorado 8arbarium, Boulder;
<br />Colorado Stets University 8erbarium, Fort Collins; and the Hocky Mountain and
<br />II. 8. PoreBt 8ssviee herbaria, Laramie, gives a slightly different
<br />perspective. Although the species may be close to oaks or aspens, they tend
<br />co be is openiaga or on the edges of such bebitate. More frequently they are
<br />in open meadow , often •ubalpine. About one-third of the specimens rera
<br />collected on road cuts suggesting an affinity !or disturbed sites.
<br />elevations ranged from 8100 to 10,200 feet. There ie an unconfirmed rapori of
<br />the species occurring across the valley from the Weet Slk Mine rest of
<br />Somerset, Gunnison County.
<br />ualificaeione of Investigator
<br />The principal investigator, Bobart Dorn, has a Ph. D. in botany from she
<br />University of liyoming. 8e le author of Vascular Please of omin . Yaaeular
<br />Plante of Montana, and numerous other boor and ec entire papers. f!e-~
<br />nearly 30 years e:perienca with the Aocky Mountain flora and has studied the
<br />Peaetemone on the rear elope of Colorado for a number of years. Be has
<br />described tvo ner Psnstemons that occur in rseeatn Colorado: P. gibbsnsii Dorn
<br />and P. fremonti va~abreseena Dorn 6 Lichvar. 8e has conducted
<br />iavencoriss for ihreeteae ed nd ea~ngered plants for the Suresu o! Laad
<br />Managment in Mesa, Garfield, Delta, and Montrose counties.
<br />8urva Methods
<br />Approximately 40 scree betresa 6200 and 6700 feat is 1138 890W parse of
<br />Sections 9, 10, 1S, and 16, Gunnieoa County, Colorado (Map 1). rare surveyed
<br />on foot on May 9, 1994, by Hobert Dorn. The survey included several hundred
<br />fees outside the proposed disturbance arena. The general habitats vets noted
<br />as wll as a sample of plant genera. Penetemone wre speeifiealiy
<br />for.
<br />searched
<br />~Survsy Rasulta
<br />-T~ area ie largely covered rith oak-servieeberry-chokecherry brush. There
<br />era a fer open grassy parlu, grassy disturbed area, storage and facilities
<br />areas, and several roads. The soils are mostly all clay. Cenera observed
<br />include Acer, Achilles, oseris, _~Al~sau~_m, Ame
<br />Arabia, Aietium~naria, Arnica, Artsmisia,
<br />C~rcocarpus, Chaenaccie, Chryaothamnue, C
<br />tier. Androsaee, Antennaria,
<br />amorhiaa, Bromua, Cardaria,
<br />um, .C,,~l~a!toal~_a, Clematis,
<br />:, Cyuo lossum. Da P-rhino,
<br />glum, Jun~rue, Lapidium,
<br />~dica o. Mertensis, untie,
<br />, Poa, Po y- g~onum. Popu us.
<br />, Soso, Sanacio, Stellsria
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