Rhodora 
JOURNAL OF 
THE NEW ENGLAND BOTANICAL CLUB 
Vol. 24. August, 1922 No. 284. 
COLOR TYPES OF CORALLORRHIZA MACULATA RAF. 
H. H. BARTLETT. 
IN the 7th edition of Gray's Manual, Ames describes Corallorrhiza 
maculata Raf. as madder-purple or yellowish; the white lip spotted 
with magenta-crimson. He notes the rare occurrence of pale forms 
without spots on the lip, petals, or sepals. In Britton and Brown's 
Flora the scape is described as purplish, the flowers as brownish 
purple, and the lip as white, spotted and lined with purple. "There 
is also this note: “A form with yellow scape and flowers occurs in 
Nebraska (according to Williams)." Williams recorded his observa- 
tions in an article entitled * Notes on the Canyon Flora of Northwest 
.Nebraska" (Amer. Nat. 24: 779-780. 1890) as follows: 
*Leaving Harrison, we pitched our tent in War Bonnet Canyon 
In nearly all of the canyons, especially the damper, darker 
ones, Corallorrhiza multiflora Nutt. grew quite plentifully, while only 
the darkest canyons afforded the rare C. innata R. Br. In a small 
canyon at the head of Jim Creek was found a lavender-yellow variety 
of the former species." The term lavender-yellow would seem to 
apply to a form with both purple and yellow pigmentation, rather 
than to a pure yellow, and unless the literature contains other 
observations by Williams which have eluded the writer's search, the 
occurrence of a pure yellow form in Nebraska is not clearly attested. 
The pure yellow form of the East has been named Corallorrhiza 
multiflora var. flavida Peck. Originally described from New York, 
it has been reported by Alexander (Report Mich. Acad. Sci. 12: 97. 
