1393.] Botany. 475 
Stereum rugosum Pers., S. acerinum (Pers.) Fr., Hymenochete corrugata 
(Fr.) Lev., Corticium salicinum Fr., Cuphella tilie (Pk.) Cke., C. fulva 
B. & Rav., Clavaria botrytis Pers., C. formosa Pers., C. stricta Pers., C. 
fusiformis Sow., Spathularia flavida Pers., Guepinia spathularia (S.) Fr., 
Lycoperdon gemmatum Batsch., L. pyriforme Schæff., Scleroderma vul- 
gare Fr., Phragmidium subcorticium (Schrank.) Wint., Puccinia pecki- 
ana Howe, P. graminis Pers., P. circææ Pers., P. pimpinelle (Strauss) 
Lk., P. sorghi Schw., P. malvacearum Mont., P. mariæ-wilsoni Clint., 
P. fusca (Relh.) Wint., P. podophylli Schw., Uromyces junci (Desm.) 
Tul., U. polygoni (Pers.) Fekl., U. hyperici (Schw.) M. A. Curt., Ræs- 
telia lacerata (Sow.) Fr., Æcidium clematidis DC., Ustilago caricis 
(Pers.) Fkl., U. avenæ (Pers.) Jensen, U. erythronii Clint., U. utriculosa 
(Nees) Tul., Sphacelotheca hydropiperis (Schum.) Schrot., Urocystis 
waldsteinie Pk., Microsphera alni (DC.) Wint., Hypocrea richardsoni 
B. &. M., Hypomyces lactifluorum Schw., Diaporthe acerina (Pk.) Sace., 
Hypoxylon fuscum Fr., H. blakei B. & C., Pezicula carpinea (Pers.) 
Tul., Cenangium cerasi (Pers.) Fr., Patellaria rhabarbarina Berk., 
Aphia tigillaris B. & Br., Monilia fructigena Pers., Coniosporium 
rhizophilum (Pr.) Sacc., Trijara americanum Thüm., Septoria 
enothere West.—CHARLES E. BEssEY. 
Seymour and Earle’s Economic Fungi.—The fifth fascicle 
of this set was distributed February 1st, 1893. It includes numbers 
201 to 250, represented chiefly by Uredineæ parasitic on woody plants, 
many numbers (226 to 250) being devoted to the gymnosporangia, 
with their aecidial stages. Accompanying the set is a systematic list 
of hosts, from which one learns that the 50 species of fungi are parasitic 
upon 35 hosts, representing 13 families of flowing plants. 
Of the usefulness of this set to students of the injurious — little 
need be said. It is simply indispensable.—CHARLES E. Bess 
Halsted’s Weed - Seeds.—One of the most useful sets of speci- 
mens recently distributed is the “One Hundred Species of American 
Weed-Seeds,” issued by Dr. B. D. Halsted, of New Brunswick, N. J. 
It consists of 100 small screw-capped vials, each containing a good _ 
quantity of cleaned seeds or achenes, in the condition in which they 
usually occur as impurities in horticultural and agricultural seeds. It 
supplements most admirably the two centuries of “American Weeds,” 
issued by the same author.—CHARLES E. BEssEY. 
Morong’s Naiadacez.—Students of the Naiadacee will be 
greatly helped by the sets of named specimens which Dr. Thomas 
