82 
TYPE SPECIMENS IN THE ROYAL HERBARIUM, KEW. 
Ag. (Clitopilus) straminipes, Massee, Orev ., xvi.,p. 43. 
Spores globose, coarsely nodulose, 10-12 /x diameter; no 
cystidia. 
Ag. (Eccilia pyrinus), B. C., Ann. Nat. Hist., Vol. iv., Ser. 3 (1859). 
Spores elliptic-oblong, with a basal apiculus, warted, 8-9 x 
6 fx ; no cystidia. 
Ag. (Eccilia) hyalopedes, B. $ Br., Journ. Linn. Soc., xi ., p. 540. 
Spores subglobose, coarsely warted, 10-12 p diameter; no 
cystidia. 
Ag. (Eccilia) griseo-carneus, B. $ Br., Ann. Nat. Hist. (1865), pi. 
xiii .,Jig. 1. 
Spores elliptic-oblong, warted, 7x5 /x; no cystidia. 
Fsilopezia mirabilis, Berk. $ Curt. 
The type specimen of this species proves to be identical with 
Aleurodiscus Oakesii, Cooke. 
Bibliography. 
Vergleichende Morphologie dev Pilze (Comparative Morphology 
of Fungi). Dr. F. von. Tavel. — In the present excellent book we 
have a clear account of the morphology of fungi, based on the 
numerous researches of Dr. Brefeld, as described in his “ Unter- 
suchungen aus dem Gesammtgebiet der Mykologie,” of which the 
present may be considered a condensed and correctly interpreted 
account, as the author has been for some time engaged in assisting 
Brefeld in his researches. There are numerous excellent illustra- 
tions showing the most important structural features of typical 
members of each group, also secondary forms of fructification, 
where such have been determined by carefully conducted experi- 
ments. The book is indispensable to all who wish to keep abreast 
of the subject, and would also prove of value to those who consider 
the modern departures in systematic arrangement from those of 
Fries, Persoon, or Corda, as being due more to the desire for 
change than to the outcome of prolonged research. 
North American Heliscoporce . A. P. Morgan (Cincinnati Soc. 
Nat. Hist., 1892). — An excellent example of careful and pains- 
taking work. The author has ignored the modern method of 
attempting to make what is usually considered a complete mono- 
graph, by introducing species he has not seen, and justifying their 
rearrangement by gratuitous comments and suppositions. The 
species are described in detail, and each one is illustrated in a 
manner that shows at once the author’s familiarity with the species 
under consideration. 
It may be well to explain a point in connection with this subject 
