1922] Bartlett,—Color Types of Corallorrhiza maculata Raf. 147 
Advantage was taken of Mr. Hermann’s fresh specimens to match 
their colors in Ridgway’s * Color Standards and Color Nomenclature" 
(Washington, 1912). The first type, identified as var. flavida, has 
lemon-yellow flowers with an unspotted, white lip; scape and sheaths 
Martius-yellow. In the second type, which may be called var. fusca, 
the scape and developing fruits are light cinnamon-drab. (Perhaps 
this tint was what Williams called lavender-yellow, since it has both 
purple and yellow components.) The sheaths are Vandyke-brown, 
and give var. fusca its prevailing brown tone. In the third variety 
the scape and developing fruit are Perilla-purple. The sheaths are 
a much paler purple than the scape. In this type, which may be 
called var. punicea, there is no trace of brown whatever, in any part 
of the plant. 
In species in which the genetical relations of yellow and purple types 
are known, the pure yellow has the most recessive factors and the 
deepest purple the most dominant factors. Geographie distribution . 
indicates that the recessive types more often arise from the dominants 
than vice versa. Consequently the deeply purple-stemmed var. 
punicea might with some reason be viewed as the biological type of 
the species, and therefore chosen, in the absence of a type specimen, 
as the nomenclatorial type as well. In most species the var. typica 's 
not formally named. These saprophytic orchids, however, undergo 
brown discoloration in drying, and are probably not varietally dis- 
tinguishable from old herbarium material. Since practically all 
distribution records have been based upon dried material, there is a 
practical reason for wishing to continue to use the binomial for the 
species in the most comprehensive sense, without implying any par- 
ticular variety. Consequently var. punicea is named as well as the 
other two. The species probably contains still other varieties. 
By way of summary, the color types of Corallorhiza maculata may 
be characterized as follows: 
Var. flavida (Peck) comb. nov. (C. multiflora (Nutt. var.] flavida 
Peck, N. Y. State Mus. Rep. 50: 126. 1897.) scapis vaginisque et 
fructibus immaturis pallide flavis; floribus flavis; labello albo, im- 
maculato. 
Var. fusca var. nov. scapis et fructibus immaturis subfuscis, paulum 
-= rubrotinctis; vaginis atrofuscis; floribus ochraceis, purpureomaculatis; 
labello maculato. 
Var. punicea var. nov. scapis et fructibus immaturis puniceis, 
