120 NEW YORK STATE MUSEUM 
Acer rubrum (red maple) 
*4 A yellowish to deep brown erineum in large patches on under 
side of leaf. Trichomes capitate. | 
Garman ’92, no. 12 Mass. 
Specimens from Sand Lake, in the State Flerbarium, labeled 
Erineum luteolum, and others from the Catskill mountains 
(Pro, (CC. lal, Peek). INEN@ 
Specimens from Lyons pond near Nassau. Nae 
FiIZwime tint HeCirimnthin Ibink me, iO, “ wrecqmens ta A. 
iP WIDPO 
Schweinitz 34, no. 2797 INE 
This is placed in the section Phyllerium, which has simple 
trichomes, and so will not agree with either the preceding or follow- 
ing. Persoon, however, describes his E. acerinum (no. 15) 
under the section Grumaria, having enlarged or deformed trichomes, 
and as occurring on the under side of the leaves (of four European 
maples), thus agreeing in character and position with the pre- 
ceding (no. 4). 
*6 A whitish or brown erineum in elongated patches on the veins, 
on upper side of leaf. Trichomes capitate. 7 
Garman ’92, no. II N.H. 
Specimens from Sand Lake (Professor Peck) in the State Her- 
barium, labeled Erineum acerinum. IN YW. 
This will hardly agree with Persoon’s description of E. acer-. 
inum ; see the preceding, and Persoon ’22: no. 15. 
*7 A whitish frostlike erineum, with small spots of rosy pink, 
spreading broadly along the 3 or 5 main veins, on the upper surface 
of the leaf, sometimes nearly covering it. Trichomes capitate. 
(This may be merely a variation of the preceding, our specimens of 
which sometimes showed pinkish brown spots.) Specimens from 
Altamont in State Herbarium (Professor Peck), labeled Erineum 
ACCH LMU wa & ING 
A similar gall was observed at an elevation of nearly 2000 feet 
on Blackhead mountain in the Catskills, last of June, on Acer 
sp. (?); the specimens unfortunately lost. 
Jarvis’s figure 1, plate B, looks like a sparsely developed example 
of this; it is hardly an A. saccharum leaf. 
*8 A pocket-gall, similar to that of Eriophyes quadripes 
and probably the same; see no. 10 for description. 
Garman ’92, no. 13 Ky., New Eng., Eastern States 
IalAGEN 5, MOS, Zi, 2% 22k) D.C., N.H., Mass. 
