AND THEIR ANALOGUES. 33 
interdum venis paucis prominulis, Meruliorum more, instructa; ba- 
sidia obovato-globosa tandemque bipartita, sterigmata duo linearia, 
longa, divaricata exserunt quibus singulis spora ovata v.'brevissime 
oblonga, sepe quadantenus curvula, utrinque tandem obtusissima, 
brevissima, 0°01 millim. longa et 0:004-0:007 crassa, debito tempore 
insistit. 
Crescit sero autumno in pinetis et fagetis montanis seepissimeque series 
describit lineares. Frequentem vidimus in sylvis Carthusianis prope 
Gratianopolim Delphinensium, exeunte Septembri a D. 1857; longe 
rariorem eontra a. 1859, mense eodem. 
Sporz forma et crassitudine variant; pulveris instar albidi posticam s.in- 
feram pileifaciem humidz,cumulatz velant, quam cultelli ope si raderis, 
hanc farinam non zgre colliges. Spore recentes, basi acutiusculz, quid- 
quam sterigmatis aliquando retinent, ocellumque pallidum sub medio 
tegmine monstrant; endochroma seu plasma contentum in guttam 
oleosam crassam mediamque tandem pro maxima parte vertitur. 
Spore ex alterutro apice, rarius e latere, germen filiforme pro- 
trudunt. 
Fungus truncis, quisquiliis foliisve putridis vulgo sedet, ejusque my- 
eelio involvi quandoque suspicati sumus lapillos illos seu calcareas 
concretiones quas trunci isti corrupti suis in penetralibus fovebant ; 
exterum hi lapilli albidi, licet nucis avellanz et quod excedit crassitu- 
dine, oblongi autem et varie compressi, ejusdem omnino nature vide- 
bantur atque nuclei longe minores quos in Tremella v. Nematelia 
quadam mauritaniea olim videramus. (Cfr. Ann. Sc. Nat. ser. 3, 
t. xix.) 
III. Since our first paper upon the Tremellini, we have found 
in Tremella frondosa Bull., and T. albida Huds., an hymenial or 
fertile apparatus quite similar, so far as regards the tetrasporous 
basidia, to that of Tremella mesenterica Retz. The fine groups 
of Tremellg frondosa which we gathered in January 1863, on the 
dried stump of an oak in the forest of Meudon, near Paris, did 
not measure less than 15-20 centim. in diameter; they were of 
a very pale flesh-colour, inclining to yellowish; the membrane 
of the fungus is thin, corrugated, or like crumpled stuff, and dis- 
solves into aqueous mucilage. Each basidium is formed of three 
or, more frequently, four globose cells which. at last become almost 
detached from one another and terminate in flexuous spicules 
0:03—05 millim. long; the spores are shortly ovoid, and in ger- 
mination become very nearly spherical. 
In Tremella albida Huds., which we met with in December 
1861 on the bark of a Sycamore (Acer Pseudoplatanus), the ele- 
ments or parts of the basidia remained united, and its spores 
were crescent-shaped and blunted at each end. 
LINN. JOURN.—BOTANY, VOL, XIII. D 
