. 234 ASCOMYCETKS. mouth pine. According to the observations of liostrup in Denmark, and myself in various localities of Germany, this is a dangerous parasite on Pinus Strohus. It kills the needles and young shoots, and may devastate whole tracts of forest. The diseased needles become brown in summer, and fall off during next winter. On them are produced apothecia containing club-shaped asci and paraphyses with button- shaped ends. The eight spores of each ascus are at first unicellular, later apparently bi- cellular, and enclosed in a very mucilaginous Fig. of ^Hca coat. The ascl ha
. 234 ASCOMYCETKS. mouth pine. According to the observations of liostrup in Denmark, and myself in various localities of Germany, this is a dangerous parasite on Pinus Strohus. It kills the needles and young shoots, and may devastate whole tracts of forest. The diseased needles become brown in summer, and fall off during next winter. On them are produced apothecia containing club-shaped asci and paraphyses with button- shaped ends. The eight spores of each ascus are at first unicellular, later apparently bi- cellular, and enclosed in a very mucilaginous Fig. of ^Hca coat. The ascl havc an average length of 'Co".™i!\X?ofth1 120/x, the spores 20m, and when swollen lower surface. 1, An .^ q f ^ o n entire and a dehiscing -^^ ^' 'J "A'- '(t^Tuw deT)" H. piiiicola Bruuch.^ forms linear apothecia on needles of Fimis sylvestris. H. ericae In Tyrol and Northern Italy, this fungus causes a disease on Erica carnca. It is common and epidemic, causing death of the leaves. Hypodermella. Similar to Hyidodcrma, except that the spores are pear-shaped and unicellular; they occur four in each ascus, and are shorter than it. Hypodermella sulcigena (Link)'' has four long, club-sha]->ed, unicellular spores. Eostrup regards it as parasitic on Pinus montana and P. si/lrcstris, its mycelium being found in living green needles, and causing their death. Hyp. laricis This is a new fungus of the larch- needle found by Tubeuf on the 8onnenwendstein (Bavaria) in September, 1894, It was present in large quantity on larches on the upper part of the mountain, and was in every way so decidedly parasitic in character, that there is little doubt as to its being an epidemic disease. The full-grown needles on many of the foliar spurs had died oft' and turned lu'own. The ' Brunchorst, Xo<jlc iior-fh- sl-orsyijdommf: in Ber(j< un 1S92. -V. Tubeuf, Botan. CcutraVdait, xxi., 1885, and lxi., 1895. ^Rostrup, Fortmtte Unchrsoefidser, 1883.
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