TWO JAPANESE EDIBLE FUNGI. 
63 
1. Lactarius Hatsudake, Tan. — Pileus fleshy, 1-10 c.m. broad, at 
first hemispherical, then expanded, umbilicate, viscid, zoned, smooth, 
dirty brown and slightly tinted with pink ; margin smooth, at first 
incurved ; stem stuffed, then hollow, pinkish, pruinose, subequal, 
short, 1-3 c.m. long; gills decurrent, often branched, rather broad, 
broadest in the middle, purplish brown, then bluish ; juice aromatic, 
dull pinkish brown ; spores echinulate, nearly spherical or ovoid, 
subhyaline, 8-10 ^x in diameter. 
2. Lactarius Akahatsu, Tan. — Pileus fleshy, 2-8 c.m. broad, at first 
hemispherical, then expanded, umbilicate, viscid, absolutely zoned, 
smooth, yellowish red, then pale ; margin smooth, at first incurved, 
paler, at length slightly repand, rather thin and acute ; stem 1-4 
c.m. long, nearly equal, curved, stuffed, then hollow, yellowish, 
pruinose ; gills decurrent, orange, then greenish, rather thin (nar- 
rower than those of L. Hatsudake), broadest in front; juice orange, 
aromatic ; spores echinulate, nearly spherical or ovoid, subhyaline, 
9-11 fx long and 6-8 fx in diameter. 
3. Lactasrius deliciosus (L.), Fr— Pileus fleshy, 2-11 c.m. broad, 
convex, umbilicate, viscid, zoned, smooth, reddish-yellow, then 
pale; margin smooth; stem 8 c.m. long, stuffed, then hollow, 
rather spotted ; gills subdecurrent, yellowish, then pale, when 
bruised green, juice aromatic, reddish-yellow ; spores spheroid, 
echinulate, subhyaline, 7-8 fx in diameter, or 9-10 fx long and 6-8 
ix broad. Colour variable ; pileus sometimes zoneless. 
By comparing the above descriptions it is evident that the three 
fungi are quite distinct from one another, and we recognize a much 
closer resemblance between the second and third rather than 
between the first and second or first and third. 
As no species of Lactarius , which has the characters perfectly 
coincident with either Hatsudake or Akahatsu, has yet been 
described, I consider both of them to be new 'species, and deem it 
convenient to distinguish them by their native names. 
A Japanese species of Lactarius , under the name of L. lividatus , 
B. & C., is given in Saccardo’s Sylloge. It closely resembles 
Hatsudake in its characters, but it is placed in the tribe Russularia, 
the species of which have white milk at first, while Hatsudake has 
dull purplish brown milk. 
As regards the structure of Hatsudake, it is to be observed that 
groups of broad roundish cells appear to be set in a weft of slender 
elongated hyphaj. The large-celled groups are sharply defined 
from the strands of slender hyphas. In transverse section, 
especially in the stem, the cells of many of the large-celled 
portions are ovoid or wedge-shaped, and are so arranged as to form 
a rosette; other groups show two rosettes. The small circular 
centre of the rosette is formed by an elongated hypha, which runs 
longitudinally through the groups of large-celled tissues. The 
groups of large-celled tissues become fewer and smaller towards the 
under surface of the pileus. The laticiferous tubes run through 
