June, 1891. 
THE FUNGI OF WARWICKSHIRE. 
135 
and larva of the weevil (Curculis suLcatus ) were similarly 
treated, and when the temperature fell to 20° (12° of frost), 
the gnats fell dead, and the weevil larva became frozen and 
perished. 
“ Frost will, with difficulty, penetrate organic soil and 
decomposing leaves. At Higlifield House, near Nottingham, 
in the great frost of 1860-61, when the temperature fell to 8° 
below zero at four feet above the ground and to 13-8° below 
zero on the grass—a drain, cut through a bed of organic soil 
(mainly composed of nut branches) had a temperature four 
inches below the surface of 42° above zero, i.e., 55-8° higher 
than on the grass at a few yards’ distance. Although the 
River Trent was frozen, this drain, only one foot wide, and 
containing less than twelve inches (in depth) of water, 
remained unfrozen, the heat of this ancient bed of organic 
matter keeping off frost. Here Limax Icevis was found under 
pieces of wood, regardless of the great cold.” 
THE FUNGI OF WARWICKSHIRE. 
BY W. B. GROVE, M.A., AND J. E. BAGNALL, A.L.S. 
(Continued from page 117.) 
540. * P. betulinus, Fr. (Not Boletus betulinus, With.) On 
birch trees. Colesliill Heath ; near Arley ; [also on a 
dead but standing birch in the Church Fields, Harborne.] 
541. P. applanatus, Fr. Trunks. Rare. Hopsford, Adams. 
542. P. fomentarius, Fr. Boletus, Purt. On tree trunks. On 
a stump opposite Alcester Mill; and on the trunk of an 
elm tree near to Hertford Bridge, Purt. ii. 674. War¬ 
wick, PiUssell, Illustr. Kingswood, Hawkes! Salford 
Priors; Egbaston Park. A peculiar abnormal form 
of this occurred on some old timber in a manufactory 
yard in Birmingham. 
543. P. igniarius, Fr. On willow and pium trees, &c. On an 
old plum tree, Abbey End, Kenilworth, Bussell, lUustr. 
Ansty, Adams. Barston ; Packington Park. 
544. P. conchatus, Fr. On tree trunks. Near Colesliill, 1882. 
545. P. ribis, Fr. At the base of currant bushes. Warwick, 
Perceval, September, 1872. Foot of a currant bush, 
Warwick, July, 1872, Russell, Illustr. 
554. P. vitreus, Fr. On a cellar wall, Edgbaston, September, 
1889, J. TV. Oliver! 
* Nos. 540-545 were accidentally omitted from their numerical order. 
