HYDNUM. 



FIGURES ILLUSTRATING THE HYDNEAE. 



Fig. 1, Hydnum repandum, section through the entire fungus, showing 

 the inferior hymenium, consisting of subulate spines ; stem excentric ; haft" 

 nat. size ; Fig. 2, Hydnum aureum, section showing the superior 

 hymenium in a resupinate species; nat. size; Fig. 3, Caldesiellaferrugi- 

 Tiosa, spores, highly mag. ; Fig. 4, Sistotrema confluem, single specimen, 

 showing the more or less jagged plate-like teeth ; Fig. 5, Section of same, 

 nat. size ; Fig. 6, Irpex obliquus, portion of specimen ; nat. size; Fig. 1, 

 Section of same, showing the unequal, more or less torn, oblique teeth; 

 nat. size ; Fig. 8, Mucronella calva, showing a few of the erect, elongated 

 teeth, springing directly from the substratum of wood, without any trace 

 of a subiculum or resupinate layer of hyphae ; nat. size ; Fig. 9, Radulum 

 urbiculare, portion of a plant ; nat. size ; Fig. 10, Phlebia radiata, portion 

 of a plant, showing the radiating margin, and folds or wrinkles of thp 

 hymenium; nat. size; Fig. 11, Basidium and spores of same; highly 

 mag. ; Fig. 12, Grandinia granulosa ; nat. size ; Fig. 13, Section of same, 

 showing the crowded subrotund granules covering the hymenium ; slightly 

 mag; Fig. 14, Porothelium confiisum, portion of plant; nat. size; 



