462 
known, but both have been supposed to belong to X. subfusca ; 
see Harvey, Nereis Boreali-Americana, Part 2,26. The distinc- 
tions of the two species are shown in detail by Kjellman, l. 
Probably common, but to be distinguished with certainty only 
when fruiting, which occurs chiefly in December and January. 
Found at Revere Beach, Mass., by the writer; at Martha’s Vine- 
yard by Miss L. E. Jernegan. 
PoOLysIPHONIA VESTITA J. Ag. Algae Mediterraneae, 133; Species 
Algarum, 2: 987. 
To this species I refer a plant from Martha’s Vineyard, col- 
lected by Miss L. E. Jernegan. It is four-tubed, somewhat cor- 
' ticated below, with long patent branches, which are repeatedly 
branched and have a somewhat pyramidal outline. The whole 
plant is beset with short tufts of very fine and soft branching 
ramuli; in the older parts distant, in the younger closely set; 
color reddish purple. The specimen does not agree with any of 
the species credited to this coast, but is quite like the P. vestita 
of J. G. Agardh, as represented by a specimen from Hauck’s her- 
barium; the P. vestita of Kuetzing is a different species. 
Unless otherwise noted, all the species mentioned above were 
collected by the writer. 
Explanation of Plate 278. 
Lhycocelis maculans Collins. 
Fig. 1, Basal filaments at an early stage of growth. Fig. 2. Portion of fully 
developed basal disk. Fig. 3. Short, erect filament with terminal sporangium, and 
lower part of long erect filament, both arising from basal layer. Fig. 4. Upper pot- 
tion of erect filament. Fig. 5. Portion of erect filament with two lateral sporang'™, 
one of them emptied. 
Reviews. 
The Nursery Book, By Prof. L. H. Bailey. pp. 365. figs. 152. The 
Macmillan Company, New York. Price $1.00. 
This is a very comprehensive, compact and lucid description 
of all the various modes of propagation of plants, not only belong- 
ing to the nursery proper, but takes in the denizens of the her- 
baceous garden, greenhouse, and all plants usually found on either 
commercial or private grounds; it is profusely illustrated, showing 
very minutely the best methods of seed testing, the sowing of oe 
