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■i I
w a ited y 11— 12 ju diameter.
Pntendium Bostrupii, Raunk., Myx. Dan., p. 106 (in English)
On fir-stumps and rotten oak branches—autumn.
Denmark.
From the above description alone it is difficult to indicate
M vZclZZi between the present species and E.
Enteridium macrosporum, Raunk.
Aethalia hemispherical, 2 mm. diameter, at first reddish later
ohve. Spores in oval ball-shaped clusters of from 5 - 2 5
Unly the convex surface spinulose, 12—14 g diameter.
^ Entendium macrosporum, Raunk., Myx. Dan., p. 106, t. 2,
On rotten fir branches. Autumn. Near Copenhagen.
This species I have only found once, and then but very few
specmens. I t seems to be especially different from the other
spcies of Enterulium in the size of the spores and the particularly
developed sculpture of their convex surface. (Raunk.)
Enteridium Eozeanum, Wing. (f. 108)
Aethalium of irregular shape, globose, ovoid, or rounded-
pyiamidal, attached to the substratum by a wide base. Variable
in size, from 5 -SO mm. in diameter. Cortex and mass
of spores ferruginous brown; occasionally the cortex shinim. •
sometimes membranaceous, pellucid. Interior structure very’
caSlli B -
T a U rid d “ 'T into
c o r t f The ^he
t the angles where they join each other. Spores globose
about two-thirds of the surface covered with a d eL a te r e f k ’
fine-meshed network, the remainder with simple f a r í or
Teas J e t t i T
Enteridium Bozeanuni, Wing., Proc, Acad. Nat. Sci. Phil.,
1889, p. 156.
Beticularia (?) Bozeana, Rost., Mon., Suppl., no. 179; Sacc.,
Syll., no. 1425.
Licea fallax, Pers., in Herb. Sohwein.
On wood, bark, &c. Britain (Scarboro’) ; France; United
States.
The spaces in the capillitium, which represent the individual
sporangia of the aethalium, have about the same dimensions
in the same plant, but vary considerably, comparing one specimen
with another. The extremes of variation may be expressed
by the proportion 1 to 10. Sometimes the bands of
the capillitium are very much lacerated longitudinally, and
form a filamentous mass, when the characteristic structure of
the genus is entirely lost after the dispersal of the spores.
Capillitium yellowish under the microscope.
The whole of the above is from Mr. Wingate’s article, which
also contains an interesting historical sketch of the species.
The present species appears to be generally distributed in
the United States, judging from the specimens in the Kew
herbarium sent by various American correspondents; one
specimen communicated by Ravenel from Lower Carolina is
irregularly circular in outline, three and a half inches in
diameter and half an inch thick. The European form, judging
from the specimens I have seen, has the sporangial walls very
much reduced, and will probably be found in herbaria under
Beticularia, where I was at first disposed to place it until convinced
by Mr. Wingate of its nearer affinity with Enteridium.
B. Spores laarted.
Enteridium simulans, Rost.
Very similar to E. olivaceum, but the spores are free or loosely
aggregated, irregularly spherical, and minutely ivarted all over,
10—12 g diameter.
Rost., Monogr., Appendix, p. 31; Karst., Myo. Fran., iv.
p. 126; Saco., Syll., n. 1400.