North American species of Lactarius / L. R. Hesler, Alexander H. Smith.

Appendix HI

573

Lactarius cilicioides (Fr.) Fries var. cilicioides, Epicr. Syst. Mycol.
p. 334. 1838
Fries (1821; p. 63) described the pileus as "sordide incarnato" and
it is on this basis that the species has, in recent times, correctly been
regarded as a taxon very close to L. torminosus-in fact very close to our
L. torminosus var. nordmanensis. Our (1960b) concept (and that of
much of the European literature) is of a Lactarius in the L. resimus-L.
scrobiculatus color range. A type for L. cilicioides must be designated in
order to fix the application of the name.
Lactarius clitocybiformis Murrill, Lloydia 11: 93. 1948
Pileus convex to deeply depressed, solitary, 4.5 cm broad; surface
slightly viscid, finely tomentose, dirty-white, margin even, entire,
strongly deflexed on drying; context very thin, white, unchanging,
odorless, mild or nearly so; lamellae adnate, some forking at the base,
narrow, rather close, inserted, entire, thin, white, unchanging; spores
globose, spinulose, white, 9-11 yu; sterile cells abundant, spinulose,
sharp, smooth, hyaline, about 60-75 X 5-10,; stipe equal, smooth glabrous, white, unchanging, 3 X 0.8 cm.
From under hardwood trees, near Gainesville, Fla., October 21,
1948, Murrill F18366 (type, FLAS).
The species is not recognizable in Lactarius on the basis of the data
given. Data on the presence and type of latex are essential, and were
not given by Murrill.
Lactariusflexuosus (Fr.) S. F. Gray, Nat. Arr. Brit. Pls. 1: 624. 1821
Confusion exists in regard to the application of the name L.flexuosus Fr. Fries (1821) described Agaricusflexuosus, citing three varieties?
-"a," "b," and "c." In the Epicrisis (1838) he narrowed the concept
to var. "a" in publishing "Lactariusflexuosus." In the Systema, this
variety is described as having an umbrinous pileus. Previously Persoon (as Agaricus lactifluus var. flexuosus) had described an agaric
with pileus "incarnato-vitellino" and the stipe as "albido" which S. F.
Gray recognized as Lactarius flexuosus ih 1821. Fries (1821) cited
Persoon's fungus as var. "b" under his Agaricus flexuosus, but in
making the transfer from Agaricus to Lactarius in 1838 cited only var.
"a" of the Systema. Since it has been legislated that S. F. Gray's
Nat. Arr. Brit. Pls. is post-Friesian, Gray's (1821) proposed combination, Lactarius flexuosus, has priority over that of Fries (1838). It