38 MM. L. R. AND C. TULASNE ON THE TREMELLINEOUS FUNGI 
purpureus (in Ann. des Se. Nat. 5th ser. t. iv. [1865], p. 295), 
except that these threads are bent in the shape of a crosier, 
instead of being rectilinear and upright. If we consider the bys- 
soid nature and effuse or indeterminate form of that Hypochnus, 
by which characters it comes near to the Sebacine above men- 
tioned, it will perhaps, appear to stand in the same relation to 
the Auricularia as these pretended Thelephore to the true Tre- 
melle. 
As one analogy often leads to another, we may remark that the 
fertile crosiers of Hypochnus purpureus would be like those of 
Ptychogaster albus Cord., and of Pilacre Fr., if their spores were 
not borne upon such long pedicels. 
In order to enable the reader to make this comparison, we 
should have had much pleasure in adding to this text the analy- 
tical drawings we made, some years ago, of the two genera of 
Gasteromycetes and of the Hypochnus just mentioned *; but 
these drawings are now, alas! in the hands of our enemies the 
Prussian soldiers, and perhaps already destroyed or burnt. 
VI. The hymenial structure of the Tremelle and their ana- 
logues is moreover complicated by the habitual presence of a 
spermatophorous apparatus, the elements of which are sometimes 
mixed with those of the sporophorous hymenium, at other times, 
on the contrary, separately congregated on certain spots of the 
surface of the fungus. This duplicate arrangement may be met 
with in the same individual, as was observed by us in Tremella 
mesenterica Retz. 'The spermatia of this species are little cor- 
puscles, spherical and innumerable. Those of Exidia spiculosa 
Sommerf., and of Dacryomyces deliquescens Dub., are rather ovoid, 
and their presence is often not easy to verify. 
Since our first investigations, we have found a splendid sper- 
matophorous apparatus in a rosy Tremella which grows on the 
dead trunks ot Cherry-trees. Here the spermatophorous spots 
are orbicular, concave, and marginate, so that they resemble 
the cups of grouped Pezize placed on the inferior lobes of the 
plant. The spermatia themselves are cylindrical, bent in the 
shape of a bow, and, united three or four together, they form 
little groups or capitules on the slightly enlarged tops of the 
fertile threads. This fungus is sufficiently interesting to deserve 
a description. 
* With regard to the same fungi, see what we have formerly written in the 
Annales des Sc, Nat. 5th sér. t. iv. (1865), pp. 290-296. 
