184 JoURK"AL OF THE MiTCHELL SoCIETY [Mavck 



Spines sharp, slender, rather crowded, about 3 mm. long, shorter 

 at stem and fading away towards the sterile margin, slightly decur- 

 rent, light brown on the margin, deep cinnamon brown elsewhere, 

 darker when bruised ; when still growing the marginal ones are the 

 color of the cap margin. 



Stem central, short or of moderate length, 1.4-3.5 cm. long, 8-13 

 mm. thick at cap, much thickened below by an irregular surface mass 

 of spongy tissue which surrounds and binds surrounding trash, and is 

 often confluent with adjoining plants ; surface colored like the cap and 

 of the same plush-like tomentum ; flesh hard inside, soft and spongy 

 towards the surface. 



Spores (of 'No. 2401) brown, roughly globose and tuberculate, 

 4-6)". See drawing. 



These are thought by Banker to be the same as H. velutinum Fr., 

 and after careful examination of a plant from Italy (Bresadola) in 

 the jSTew York Botanical Garden I quite agree with him. The ap- 

 pearance is the same, and the spores are identical. See drawings. 



1367. Mixed woods on hillside near branch, about 30 yards below Judge's 

 Spring, October 14, 1914. Odor slight, woody. 



1606. On ground among leaves under a hickory tree just north of Piney Pros- 

 pect. Spores subspherical, coarsely tuberculate, about 5-5.5^, ex- 

 actly like the spores of 2401. This is much like H. diabolis except 

 that the taste is not peppery but slightly acid with a woody flavor, 

 juice watery. 



2401. Low place in mixed pine and deciduous woods, near Meeting of the 

 Waters, July 20, 1916. Photo. 



2412. Pine and deciduous woods near Battle's Branch, July 22, 1916. 



2424. Under pines mixed with oaks near the top of Lone Pine Hill, July 

 26, 1916. Spores subspherical, coarsely tuberculate, about 5^ in 

 diameter, just like those of No. 2401. 



Blowing Rock. Atkinson. 

 Middle district, woods. Curtis. 



3. Hydnellum scrobiculatum Fr. 



Plate 28. 



Plants growing on soil in woods, gregarious and often compound 

 by fusion, individuals about 3-8 cm. wide, compound individuals 



