vi. Little Mile Creek population has ca. 300 

 plants over 640 acres. 



vii. Kirkwood population has ca. 75 plants in 

 ca. 10 acres. 



viii Elkhorn Ranch population ca. 35 plants 

 over 2 acres 



ix. Wapiti Creek population has ca. 75 

 plants over 25 acres 



x. Raynolds Bridge population has 500-1,000 

 plants over ca. 10 acres 



3. REPRODUCTIVE BIOLOGY 



a. TYPE OF REPRODUCTION: Castilleja longispica 

 does not produce rhizomes or other means of 

 vegetative propagation. Reproduction is 

 entirely from seed. 



b. POLLINATION BIOLOGY: There are no known 

 observations on the pollinators of C. 

 longispica. Large-flowered species of 

 Castilleja may be pollinated by hummingbirds, 

 while small-flowered species may be 

 pollinated by bees (Faegri and van der Pijl 

 1971) . 



c. SEED DISPERSAL AND BIOLOGY: Seeds of C. 

 longispica are borne in dry capsules at the 

 top of the stem. Presumably the capsules 

 break open and seeds are shaken from them by 

 wind or passing animals (van der Pijl 1982) . 

 Some species of hemiparasitic 

 Scrophulariaceae, such as Melampyrum and 

 Pedicularis , are dispersed by ants (van der 

 Pijl 1982) . It is not known if C. longispica 

 has this dispersal syndrome. 



d. SEEDLING BIOLOGY: Seedlings of many 

 hemiparasites require attachment to a host in 



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