m 
Yorkshire Naturalists at Thornton Dale. 
the district covered by the Forestry Commission’s plantations at Aller- 
ston, which included recently -felled coniferous woodland, and a Larch- 
Spruce plantation. 
The Beech -woods produced neither agarics nor polypores, the only 
fungi met with being those found on plants forming the undergrowth, 
chiefly at the edges of the woods. The following species were noted : — 
Cystopus candidus Lev. Phragmidium mucronatum Schlecht. 
Plasmopara nivea Schroet. Septoria Hederce Desm. 
Peronospora Violce De Bary. Phyllosticta FLedericolaDwx . et Mont. 
P. alta Fuck. Phacidium multivalve Fr. 
Sphaerotheca pannosa Lev. Stegia ilicis Fr. 
Uromyces Ficarice Lev. Tricothecium roseum (Link) Fr. 
Puccinia Baryi Wint. Botrytis vulgaris Fr. 
In the Ash -Oak woods, now felled and quite open, several agarics and 
common polypores were noted, and these are included in the following 
list, which, with a few exceptions, is made up of species parasitic on 
flowering plants : — 
Psalliota xanthoderma W. G. Sm. 
Stropharia semiglob at a (Batsch) Fr. 
Hypholoma epixanthum Fr. 
Psilocybe foenisecii (Pers.) Fr. 
Polyporus squamosus Fr. 
Polystictus versicolor Fr. 
Stereum hirsutum (Willd.) Fr. 
Lycoperdon pyri forme (Schaeff . )Pers. 
Uromyces Ficarice Lev. 
17 . Acetosce Schroet. 
U. Poae Raben. 
Puccinia obtegens Tul. 
P. Hypochoeridis Oud. 
P. Leontodontis Jacky. 
P. variabilis Grev. 
P. Hieracii Mart. 
P. tumida Grev. 
P. Violce D.C. 
P. fusca Wint. 
P. Lychnidearum Link. 
P. Baryi Wint. 
Phragmidium mucronatumSchlecht . 
Peronospora Vicice De Bary. 
Aegerita Candida (Pers.) Fr. 
Cladosporium herbarum Link. 
Tubercularia vulgaris Fr. 
The damper alder wood and the springs proved to have an interesting 
mycologic flora, and two very uncommon species were obtained. One 
of these, a stipitate polypore, Polyporus fuscidulus Fr. ( teste A. Clarke) 
was found by Mr. Greevz Fysher on a fallen alder branch ; the other 
species, Cantharellus lobatus Fr., occurred on Hypnum commutatum, and 
was found by Mr. W. E. L. Wattam. In addition to these the following 
species were collected 
Puccinia Menthce Pers. 
Triphragmium Ulmarice (Schum.) 
Link. 
Frankiella alni (Wor.) Maire. 
Erysiphe graminis D. C. 
Mycena galericulata Fr. 
Omphalia umbellifera (Linn.) Fr. 
Galera teriera '(Schaeff. ) Fr. 
G. hypnorum (Schrank) Fr. 
Tubaria furfuracea (Pers.) W.G.Sm. 
Stropharia squamosa var. thrausta Fr. Hypocrea rufa (Pers.) Fr. 
Fomes nigricans Fr. Acetabula vulgaris (Linn.) Fuck. 
F. Salicinus Fr. Ciliaria scutellata (Linn.) Grev. 
F. resupinatus Massee. Ombrophila clavus Fr. 
Exidia glandulosa (Bull.)Fr. Helotium cyathoideum (Bull. ) Karst.. 
Phoma samar arum (Desm.) Sacc. Mollisia cinerea (Batsch) Karst. 
During the excursion to Allerston, a noteworthy observation was 
made in connection with the occurrence of . the mycetozoon, Reticulata 
Lycoperdon Bull., on charred conifer stumps left after felling and burning 
the plantation above Givendale, at an altitude of 500-600 feet. The 
stumps appeared to be so thoroughly carbonised, and so dry, that it 
was cause for surprise that they could support vegetation of any kind, 
yet many scores of them each bore one or more specimens of R. Lycoperdon , 
in either the plasmodium or the aethalium stage. No reference to this 
habitat of R. Lycoperdon is made by Miss G. Lister in her ‘ Monograph 
of the Mycetozoa, ' and I am unaware of any previous observation giving 
evidence of its colonising habit on charred wood. It is well-known that 
several species of fungi flourish on charcoal, and on charred ground after 
Naturalist 
