J0 Mededeelingen ’s Rijks Herbarium Leiden: 
porus triqueter in PERSOON's Observationes (Il p. 86), it cannot be 
stated positively, for there is no specimen under the name Poly- 
porus triqueter in his collection On the other hand we should 
remark, that there is a specimen labelled by PersooN „Boletus 
cutieularis Buu? Polyporus ecuticularis Fries Syst. L. p. 363, ad 
truneos Sambuci subputridos autumno.” This is without doubt Poly- 
porus cuticularis (Burr.) FR (also in Lrovyp’s opinion) agreeing well 
as to the exterior and also in the form and size of the spores. It 
seems to me that PERSOON was in doubt as to the limitation of 
the species Polyporus cutiecularis and Polyporus hispidus. So we find 
in box 99 a specimen labelled by PERSOON „Polyporus hispidus 
Mye.”, that seemed to me Polyporus cuticularis, by superficial obser- 
vation as well as by tbe examination of the spores. BRESADOLA 
to whom [ sent the specimen confirmed my determination: „== Poly- 
porus eutieularis Burr. typical! respondens omnino ieoni BULLIARDI 
tab. 462.” It is 10 cM. large, 1,5 eM thick, convex above, concave 
below, the margin somewhat eurved downwards, thinner and sharper 
then in Polyporus hispidus. It is covered with adpressed hairs, faintly 
zoned. („Fibrillis strigosis rectis obtectus”, PeRSOON speaking of 
Polyporus triqueter. Obs. L. p. 87). According to Fries!) another 
difference between these species is in the course of the fibres: 
Polyporus hispidus: intus divergenti (ibroso. 
Polyporus cuticularis: intus laxe et parallele fibroso. 
Yet this is of little importance, for the course of the fibres is 
directly determined by the general form and size of the fungus; 
it is a result of the action of gravity. 
Polyporus fumosus see Polyporus adustus. 
Polyporus hispidus a small but typical specimen (in box 374), 
labelled by PerSOON „Polyporus Boletus hispidus Burr.” 
Polyporus Juglandis Pers. — Polyporus squamosus (Hups.) Fr. A 
small specimen, in cover, sub N° 910, 263—589 labelled by Per- 
SOON: „Polyporus Juglandis Boletus platyporus Syn. Fung.” 
Polyporus laneus see Polyporus amorplus. 
Polyporus pes caprae, a specimen from Mouceor, beantifully 
figured by Lroyp (Myc. Note 35 fig. 332). 
Polyporus radiatus. 
We find under this name only two poor specimens in PERSOON’S 
collection, and it is impossible to identify them. Probably neither 
is radiatus. One of then bears besides the label „Boletus radiatus 
Sow.” another one: „var. P. versicoloris.” 1 think it is this species. 
1) Hym. Eur. Ed. Alt. p. 551. 
