Erigeron bloomeri var. bloomeri

At least five species of Erigeron were found together at
this locality as follows: E. bloomeri (two collections 974 &
975, the former unusual for the great number of bracts on the
peduncles and subtending the phyllaries; both diploid, 2n=9 II),
E. chrysopsidis (976, rays yellow, no chromosome count), E.
elegantulus (979, blue-rayed triploid, 2n=27), E. linearis (980,
yellow-rayed pentaploid, 2n=ca. 45), and E. puailis (982, tetra-
ploid, 2n=18 II).

In addition, two putative hybrids resulting from crosses
involving E. elegantulus and E. linearis were collected: 977
with white rays (unfortunately, no chromosome count) and 978
with cream rays (tetraploid, 2n=36).

Herbarium of the University of California

Erigeron btoomeri A. Gray var. bloomeri.

det. A. Cronquist, 1970.

Chromosome count: 2n = 9 II.

Oregon. Baker Co., ca. 18 miles by road SE
of Baker (ca. 5 miles NW of Durkee) at road
cut on Interstate Rte 80N. ca. 3200'.

John L. Strother 975
William J. Ferlatte

21 June 1970

02077904