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Colorado Native Plant Society ~----------------------------- • • Ule la Newsletter- of the Colorado Native Plant Society " ... dedicated to the appreciation and conservation of the Colorado native flora" Flora of the Mesa ~e Maya Region Dina Clark years have carved away at exposed the Mesa de Maya region. My study area University of Colora~o sedimentary areas more quickly than areas included Mesa de Maya and the smaller covered by basalt, leaving behind a mesas. and canyons surrounding, it. I Forty-five miles east of Trinidad, Colorado, dissected landscape of basalt-capped inventoried approximately 90,000 acres a massive plateau called Mesa de Maya mesas, canyons, and arroyos surrounded (36,437 hectares) on the Louden, Kirkpatrick, Feemster, and Spool private ~ rises unexpectedly from the southern High by the rolling terrain of the southern Great " Plains in southeastern· Colorado and Plains. ranches. Each ranch is located in a different northeastern New Mexico. Capped by section of the region, thus .providing the Pliocene-age volcanic basalt, Mesa de The flora of the Mesa de Maya region is opportunity to examine a range of plant Maya straddles the Colorado/New Mexico diverse ,and complex. It consists of communities on differing slopes, aspects border and extends approximately 45 miles numerous vegetation types, including and. elevations. The Louden ranch is eastward into the Oklahoma Panhandle, ponderosa pine savanna, pinon-juniper located in the highest part of the region, the where the same physiographic feature is woodland, deciduous riparian forest, and northwest comer, where elevations reach 6800 feet (2100 meters). The Spool ranch is kno~n locally as Black Mesa. Surrounding xeric. tall-grass, mid-grass, and short-grass the Mesa de Maya are smaller basalt­ prairie. These vegetation types are in the southern part of the region; it is drier capped mesas separated by deep canyons. composed of plants with different and lower in elevation and includes many Arroyos and shallow ravines further dissect phytogeographic affinities, including Great canyons and south-facing exposures. The the landscape. Nearly four-fifths' of the , Plains, West, and Southwest. Although Feemster and Kirkpatrick ranches are Mesa de Maya volcanic complex lie within the area was botanized in the late 1940s by located in the eastern portion of the region, C. M. Rogers, its size, isolation, and and iNclude Tecolote Mesa, tributaries of Las l Animas County in southeastern Colorado. ruggedness have left it largely unexplored. Carrizo Creek, and surrounding plains. Mesa de Maya was formed by a Dm;ing 1993 and 1994, I conducted a combinatiol1 of geologic processes. Like floristic study of the Colorado portion of ~ontinued on page 4 much of Colorado's eastern plains, the bedrock underlying the region is composed of different sedimentary layers that were Contents laid down during the Paleozoic through Mesozoic.Eras (Duce"1924). Unlike other Announcements 3 Fall & WinterWorkshops 8-10 parts of eastern Colorado, however, this Losses at USFWS & USFS 3 Dwarf Milkweed Report 11-13 area underwent a period of volcanic Corispermum in Colorado 5 Chapter News 14 ~ activity during the Pliocene Epoch (Duce, Botanical Lost & Found 6-7 For Your Library 15 1924). Several volcanoes erupted, spreading lava in uneven patterns across (White Fir In ..Colorado) Ca~ndM M the landscape (Rggers, 1953). Erosional forces acting over the ensuing millions of Page 2 Aquilegia Volume 20 NEWSLETTER COMMITIEE NEEDS NEW MEMBERS Changes in habitat and responsibilities for Tamara and Nina have made newsletter production much more difficult over the past year. Tamara's move to Dinosaur and Nina'a recent move to Mancos (not to mention her new little boy) are proving to be more than challenging for timely and efficient production of Aquilegia. The newsletter is an important service to CONPS members and needs the attention of someone who has adequate time, access to printers, and the ability to mail the newsletter at the Denver Terminal Annex, where our bulk mail permit is valid. Editor's note: If you are interested in taking this on, please call Tamara Naumann (970) 374-2504. It's The artist who rendered the illustration of been fun, but it's time to pass the torch. Here's your chance to test drive that new desktop Cercocarpus ledifolius that appeared on publishing software you've instaIied on your home computer! . ~ page 4 of Aquilegia Vol. 20 No. 2 was Elnor L. Keplinger. • Officers Colorado Native President ................ Tom Ranker ........... 492-5074 Plant Society Vice-President ....... VACANT ............................. .. Secretary ................ Mark Gershman ..... 443-9365 Treasurer ................ Carol (Scheid) Riley 493-1367 Board of Directors I Aquilegia is published four to six times per year Ann Armstrong (97) ...... Boulder. .......... 494-0545 by the Colorado Native Plant Society. This· David Buckner (97) ....... Boulder ........... 494-3231 newsletter is available to members of the Society Kathy Carsey (96) ......... Boulder........... 449-3041 and to others with an interest in native plants. Janet Coles (97) ............. Lafayette ........ 604-1378 Mark Gershman (96) ..... Boulder ........... 443-9365 The Colorado Native Plant Society is a non­ Contact the Society for ·subscription Andrew Kratz (97) ......... Lakewood ...... 238-6317 profit organization dedicated to the appreciation information. ! Paula Lehr (97) .............. Gunnison ........ 641-3236 and conservation of the Colorado native flora. Chris Pague (96) ............ Lyons ............. 492-4719 Membership is open to all with an interest in our Articles from Aquilegia may be used by other Tom Ranker (96) ........... Boulder ........... 492-5074 nfltive plants, and is composed of plant native plant societies or non-profit groups if Carol Spurrier (96) ........ Lakewood ...... 274-6905 enthusiasts both professional and non­ fully cited to author and attributed to Aquilegia. professional. Newsletter Cont~ibutions Chapter Presidents Please join us in helping to encourage interest in Please direct all contributions to the newsletter Boulder .................. VACANT to: enjoying and protecting Colorado's native plants. Metro-Denver ........ Jeff Dawson ........... 722-6758 The Society sponsors field trips, workshops and Tamara Naumann Fort Collins ............ Mike Scott .............. 490-1788 other activities through local chapters and 24 Park Lane Yamparika ............. Reed Kelley .. ......... 878-4666 statewide. Contact the Society, a chapter Dinosaur, CO 81610 Plateau ................... Gretchen representative, or committee chair for more E-Mail: Van Reyper .......... 835-3268- information. [email protected] Southwest .............. Sandy Friedley ....... 884-9245 Schedule of Membership Fees Short items such as unusual information about Committees , a plant, a little known botanical term, etc., are Life ........................................................ $250 especially welcome. Camera-ready line art or Conservation ......... Janet Coles ............. 604-1378 and ........... Kathy Carsey ......... 449-3041 other illustrations are also solicited. Supporting ..........: .................................. $ 50 Editorial ................. Tamara Naumann .. 374-2504 Organization .......................................... $ 30 , and ........... William A. Weber. 492-6171 Family or Dual ...................................... $ 15 Please' include author's name and address, Education ............... Andrew Kratz ......... 23,8-6317 Individual ...................................... ~ ....... $ 12 although items will be printed anonymously if Field Trips .............. Rick Brune ..........: ... 438-5078 Student or Senior .................................. $ 8 requested. Articles submitted on disks (IBM­ and ........... Jeff Dawson ........... 722-6758 compatible, please) are appreciated. Please Field Studies .......... Mary Edwards' ........ 233-8133 Membership RenewalfInformation indicate word processing software and version. HortlRestoration .... Tina Jones .............. 794-2647 and ........... Ann Annstrong ...... 494-0545 Legislative Affairs. V ACANT ...................: ....... ~ .. Please direct all membership applications, Membership ........... Myrna Steinkamp ... 226-3371 renewals and address changes to the Membership ~r.~L and ........... Sue Martin .............. 226-3371 Chairperson, ,Colorado Native Plant Society, Publicity ............. , ... VACANT .............................. P.O. Box 200, Fort Collins, CO 80522. Please Workshops ............. Bill Jennings .......... 666-8348 direct all other inquiries regarding the Society to ~ the Secretary at the same address. Number 3 Aquilegia ,Page 3 Jack Ward Thomas Retires From His Post As Chief of the Forest Service Many positive changes have taken place in the Forest Service under Chief Thomas's leadership. Our native flora has surely benfitted. The following is excerpted from a statement issued Colorado Weed Management October 10, 1996: Association When I became Chief, I established some personal and Annual· Conference & Trade Show professional goals for myself. These goals have been met. In the last three years, we have taken ecosystem management forward December 3 - 4, 1996 nationwide, integrated science into management decisions, brought about a cultural change, diversified the Agency's Holiday Inn leadership, and set the Course To The Future for the Forest Denver International Airport Service. Registration is $125 for CWMA members, $140 for non­ Since these
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