4 LACTARIAE ОЕ THE UNITED STATES 
Pacific Coast Fungi by Harkness and Moore, * and Morgan’s treat- 
ment of Lactarius in his Mycologic Flora of the Miami Valley, 
Ohio.T The specimens reported from Maryland by Miss Banning 
are so perfectly reproduced in her Folio of Maryland Fungi, which 
is in the State Museum at Albany, N. Y., that there is no doubt 
as to the species which she had in hand, and I have not hesitated 
to accept her list. With this exception, the distribution of species 
as given in this paper has been based upon the examination of the 
specimens themselves. 
HISTORICAL 
The genus Lactaria was established by Persoon іп 1797.1 Не 
defines the genus as follows: “ Pileus fleshy, depressed, lamellae 
latex-bearing. If the pileus is broken and the lamellae a little irri- 
tated, they pour out a milky liquor for the most part acrid, in which 
respect these fungi agree with some higher plants ; and this gives 
me a handle so that I am able to separate them under a peculiar 
genus from other agarics," etc. Under the genus he describes six 
species, four of which are readily assigned; namely, Г. piperata 
(L.) Pers., 2. lateritia Pers. [= L. deliciosa (L.) Fr.], L. pallida 
Pers., Г. torminosa (Schaeff.) Pers. ; of these, Z. piperata (LJ Tem 
stands as thetype of the genus by reason of precedence. In his later 
books, Persoon returns to his earlier nomenclature, Agaricus /acti- 
ии being used as equivalent to Lactaria, the species being written 
trinomially ; nevertheless, to him belongs the credit of first recog- 
nizing the genus. Roussel § in 1806 used Lactifluus as a generic 
name. Regardless of these two attempts at separating the group 
as a genus, Fries classified the Lactariae under Agaricus both in 
the Observationes Mycologicae and in the Systema Mycologicum, 
in the latter of which he introduced the tribal name Galorrheus.|| 
In the Epicrisis, f! published in 1838, however, he took up the 
generic name Lactarius, the name by which the genus was hence- 
forth designated until Schróter recognized the Lactaria of Persoon 
in his treatment of the genus in Cohn's Kryptogamen- Flora v von 
* Cat. Pacif, Coast F "e * 1880, 
T Jour. Cincinnati Soc. Nat. Hist. 6 : 182-185. 1883. 
і Tentamen SE ойы fungorum 63-65. 1797. 
4 Flore du Calvados 66. 1806. 
| Syst. Мус. 1: 61. 1821. 
{Т Epicr. 333. 1838. 
