168 MR. R. A. ROLFE ON 
geria rosea with the pollen of Philesia buxifolia. By this means 
all confusion between them and natural genera would be 
avoided. 
The rest of this paper is devoted to carrying this idea into 
practice for the bigeneric hybrids already in existence. 
PHAIOCALANTHE X.— This name is proposed for the hybrids 
produced between Phaius and Calanthe—two very distinct genera, 
and placed by Bentham in distinct subtribes. The former genus 
has been the seed-parent in the crosses at present effected ; and 
on the principle of placing the name of the pollen-parent first, 
some would have used the names the reverse way. But this 
does not seem to me a matter of vital importance, as in two of 
the following cases crosses have been effected both ways. The 
essential point seems to be to compound some euphonious name 
from that of the two parent genera, which shall serve as a sort of 
artificial genus for all the hybrids produced between those genera. 
Were the rule of placing the name of the pollen-plant first to be 
always adopted in compounding new names for bigeneric hybrids, 
it would, in the case of Cattleya and Lelia (and in other cases), 
lead to two names being used for practically the same thing, & 
course which seems both undesirable and unnecessary. 
P. x rrRORATA.—Phaius irroratus, Reichb. f. in Gard. Chron. 
1867, p. 264, with fig. ; also 1882, pt. 2, p. 565, fig. 100; FI. Mag. 
t. 426.—A hybrid produced between Calanthe vestita, Wall., d, 
and Phaius grandiflorus, Lour., 9, and partaking of the charac- 
ters of both parents. The cross was effected a second time; and 
as the progeny in this case proved somewhat darker in colour, it 
was called var. purpureus. For the present purpose, however, 
these colour-varieties need not be taken account of, as variation 
in this respect in the hybrid offspring is readily induced by 
selecting different colour-varieties in the parents *. 
LÆLIOCATTLEYA X .— Proposed for the hybrids between Lelia 
and Cattleya, the species of which readily hybridize together. 
The species of these genera have eight or four pollen-masses 
* Phaius inquilinus, Reichb. f. in Gard. Chron. 1867, p. 544, might appear to 
come under PAaiocalanthe x, as its parents are said to be, probably (the record 
being lost), Phaius vestitus and Calanthe masuca or C. versicolor. Phaius vestitus 
(Reichb. f. in Gard. Chron. 1867, p. 264, in note under P. irroratus), however, is 
simply Calanthe vestita, Wall, a genuine Calanthe, which never ought to have 
been called Phaius at all So that P. inquilinus is not a bigenerie hybrid, but a 
true Calanthe, which may stand as C. inquilina x. 
