606 MuRRiLL : The Polyporaceae of North America 



1 891— 1892. This beautiful little plant is closely related in habit 

 and general appearance to the American species of Ganoderma 

 occurring farther north, but it is of much smaller size and its 

 spores are quite distinct in form, size and color. It is possible 

 that the specimens I have are not quite mature. 



5. Ganoderma Oerstedii (Fries) 



Polyponis Oerstedii Fries, Nov. Sym. 63. 185 1. 



Pileus reniform, ungulate-applanate, gibbous at the base, a foot 

 in diameter ; surface horny-incrusted, very glabrous, adorned with 

 shallow furrows, which almost disappear wath age, shining reddish 

 chestnut becoming almost black ; margin very obtusely truncate 

 and marked with concentric furrows, the upper annual growths 

 exceeding the lower ; context partly hard and horny and partly 

 floccose, umbrinous next to the tubes, more tawny beneath the 

 cuticle, very thin in older specimens, the tubes forming the prin- 

 cipal part of the pileus : tubes contiguous and hence indistinctly 

 stratified, 3—5 cm. long, umbrinous within, mouths lighter in color, 

 dissepiments entire, obtuse : spores broadly ellipsoid, truncate, 

 ver>' dark yellowish-brown, abundantly and roughly echinulate, 

 II X 9/x 



Tw^o imperfect specimens of this plant are in the herbarium of 

 the New York Botanical Garden, one collected by C. L. Smith in 

 Nicaragua, and the other by C. T. Townsend on an orange tree 

 in Jamaica. These specimens, while corresponding with the 

 Friesian types at Upsala, hardly justify any considerable departure 

 from the Friesian description. 



6. Ganoderma zonatum sp. nov. 



A soft laccate fungus of medium size marked with numerous 

 tawny and chestnut-colored zones. Pileus very soft-corky, ses- 

 sile, dimidiate, applanate or convex above, concave below, gla- 

 brous, zonate, not sulcate, 5x7x1.5 cm. ; margin velvety, acute, 

 becoming obtuse and concolorous : context very soft, floccose, 

 radiate-fibrous, concentrically banded, 0.5 cm. thick, chocolate- 

 brown : hymenium velvety, not stratose, tubes i cm. long, 3—4 to 

 a mm., umbrinous within ; mouths white to umbrinous, regular, 

 polygonal, stuffed at first with whitish material, covered o. 5-2 cm. 

 from the margin with yellowish or reddish varnish ; dissepiments 

 entire, obtuse to acute : spores elongated ellipsoid, smooth, pale 

 yellowish-brown, 8-10 x 4-6//. 



