9 ^ 
ion, soil adaptation, .and exposure and water 
requirements for a variety of woody and herba- 
ceous species. If 'time permits, home land- 
scapes in the immediate vicinity of the Botanic 
Gardens will be visited. Please bring a bag 
lunch. We will have lunch in Cheesman Park if 
the weather is good, inside if the weather is 
poor. Information on nurseries carrying native 
plants will be available at the meeting to 
assist members who wish to landscape their hones 
with native species. 
May 22-23, Saturday and Sunday 
RARE PLANT INVENTORY - Phaa&Lia submutica 
Trip leader: Barry Johnston, U.S. Forest Ser- 
vice^ CONPS Plant Conservation Chairperson, 
(Work 234-4011, Home 423-2329), 5990 Field St., 
Arvada CO 80004. 
Registration Cutoff: May 8. 
sTi ir it: 
Registration Fee: None. 
location: DeBeque, 40 miles east of Grand 
Junction on i -70 (Mesa County), 
Would you like to assist CONPS in trying to find 
additional populations of one of Colo- 
rado's rarest plants? Phacelia submutica is 
known from only one extant locality. P. 
submutica is one of the highest priority species 
Identified for conservation efforts by The 
Natural Heritage Inventory and the U.S. Fish 
Wildlife Service (USFWS). P, Bub- 
r tica has been classified as a Category l 
^pecies by the USFWS, which means that they 
believe they have enough Information to proceed 
with listing of the species as Threatened or 
Endangered. Since a Listing package has not 
been written, we will try to gather new data for 
a future package. The Colorado Natural Areas 
Program and the Bureau of Land Manage- 
ment, Grand Junction District Office, have co- 
operated to register the DeBeque site as a State 
Natural Area, 
Phacelia submutica - is a tiny, annual species 
that appears only when abundant winter and 
spring precipitation provide sufficient soil 
moisture to germinate the seeds. The 1981-1982 
winter appears to be providing po- 
tentially favorable germination conditions in 
the coming spring. If conditions are favor- 
able, Society members can make a considerable 
contribution to the knowledge and conservation 
of P. submutica by collecting field data, and 
possibly locating previously unknown pop- 
ulations. 
Because of the very brief flowering period of 
this tiny species, some flexibility in the 
actual date of the field trip is required. 
Please contact Barry Johnston directly, since he 
will be monitoring the phenology of the site in 
order to pick the best time. This trip will 
require a substantial amount of walking, and 
y^Stensive ground searches that will be highly 
f ganized to most effectively find P. sub - 
muti&a plants. 
May 22, Saturday, 9 am - 2 pm 
• FOOTHILLS VEGETATION (Joint trip with DBG) 
Trip Leader: James Ratzloff (Plant ecologist, 
photographer, and past leader of CONPS field 
trips) 
Registration: Margaret Wallace, (575-2548), 
DBG, 509 York, Denver CO 80206. 
Registration Cutoff: May 15, 
Size: 25. 
Registration Fee: $2 admission to DBG; Field 
trip fee; $3750 for DBG members and $10 for all 
others. : 
Location: Foothills west of Denver. 
A study area in the foothills will be visited to 
identify the spring flora, and to describe the 
ecology of several foothills plant commun- 
ities. Vegetation-soil Interrelationships will 
also be examined. The trip will start with a 
slide show presented in Classroom C at the DBG 
at 9 am. Participants will then carpool to the 
foothills for a short hike. Please bring a bag 
lunch. 
May 29-30, Saturday and Sunday (See schedule be- 
low) 
WESTERN COLORADO PINYON-JUNIPER AND CANYON VEGE- 
TATION 
Trip Leaders: James Ratzloff; Walt Kelley, Mesa 
College. 
Registration: Scott Ellis (See March 13 above); 
dames Ratzloff (234-3580), 1388 Garrison, 
# G107 Lakewood CO 80215. 
Registration Cutoff: May 15. 
Size: Unlimited. 
Registration Fee: None. 
location! Dolores River near Naturita (San 
Miguel and Montrose Counties). 
This 2-day field trip will tour the vegetation 
of the red sandstone canyons of the Dolores 
River and adjacent pinyon-juniper woodlands. 
Highlights of the trip will be vfsiting the 
habitat of the rare Kachina Daisy, Erigeron 
kachin&mi & 9 which grows in shallow alcoves in 
canyons, and a population of the spineless 
hedgehog cactus, Ech inocereus triglochi- 
diatus var. inermia. We will also visit sites 
of the rare species Lupinus orassus and 
Lygodesmia doloresensis . Spring wildf lowers 
should be at their peak during this trip. 
Schedule : 
-;-May 2’9, Saturday, 11 am - Meet at junction of 
Highway #14 and Big Gypsum Valley Road. Proceed 
to Little Gypsum Valley on gravel road 
(approximately 25 miles). Visit Erigeron 
kachinensis habitat in Dolores Canyon. 
-—Evening - Camp in Little Gypsum Valley. 
—May 30, Sunday, Moring - Travel to Paradox 
Valley. 
— 10:30 am - Meet at Bedrock Store. Proceed to 
Echinocereue trig toahidiatus var. inermis 
habitat and Lupinus araesua habitat. 
—1:30 pm (Optional - depending on remaining 
enthusiasm) Proceed to Lygodesmia dolors - 
seneis habitat near Gateway, 
