[Vor. 5 
28 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
Zobel, who edited the final volume of the ‘Icones’ after 
Corda's death. Zobel states that the description is based on 
a specimen received from Montagne. 
10. Rhizopogon piceus Berk. & Curt. Am. Acad. Arts & 
Sci. Proc. 4: 124. 1860 (often cited as Fung. N. Pac. Exped. 
No. 114) ; De Toni in Sace. Syll. Fung. 7 : 163-164. 1888. 
Beardless, peridium at length black; gleba alutaceous- 
umber; spores oblong. 
Habitat: mountain valleys near Hong Kong, China. 
This very brief description must await a study of the type 
material before it will be a usable species name. 
11. Rhizopogon borealis Karsten, Soc. pro Fauna et Fl. 
Fenn. Meddel. 13: 161-162. 1886 (or Symb. Myc. Fenn. 17: 
161-162. 1886) ; Finska Vet.-Soc. Bidrag Natur och Folk 48: 
19-20. 1889 (or Krit. Ofversigt af Finl. Basidsv. 19-20. 1889) ; 
De Toni in Saec. Syll. Fung. 7: 164. 1888. 
Peridium difform, unequal, white, brown on drying, tes- 
taceous or lurid within, fleshy, without fibrils (?) (nuda), at 
least when dry, 2-3 em. in diameter; spores oblong or ellip- 
soid, 2- or rarely 4-guttulate, hyaline, straight, 5-8 2-3 p. 
In sandy soil near Ulaburg (H. S. Zidback). 
12. Rhizopogon aestivus Fries, Syst. Myc. 2: 294. 1823. 
Lycoperdon aestivum Wulfen, Pl. Rar. Carinth. 5 : No. 133, 
in Jacquin, Coll. Bot. Chem. Hist. Nat. 1: 349—351. 1786. 
This species is given by Tulasne as a synonym of R. rubes- 
cens in his original deseription and antedates it by twenty 
years, but it seems unwise to reduce R. rubescens to synonymy 
until the types can be studied, especially since the latter name 
has been the only one in use since it was proposed in 1844. The 
Friesian description is in such general terms that it would 
apply to several different species. 
13. Rhizopogon virens (Albertini & Schweinitz) Fries, 
Syst. Mye. 2 : 294. 1823. 
Tuber virens Albertini & Schweinitz, Consp. Fung. Lusat. 
71. pl. 8. f. 3. 1805. 
