M. Egger et Rj. Meinke, Castilleja chambersii (Scrophulariaceae), a new rare species from the northern Coast Range of Oregon, BRITTONIA, 51(4), 1999, pp. 445-451
Castilleja chambersii is described from several collections made in the Coa
st Range of southwestern Clatsop County, Oregon. The new species is a membe
r of subgenus Castilleja and is most closely related to C. parviflora and C
. rupicola. This rare species is known from only three small and geographic
ally restricted populations. Two new meiotic chromosome counts of n = 12 ar
e reported for the new species.