11499 — 11517 Hasek — Hasselbring 
99 Hasek J., Lindner P. u. Kues W. Reinhefe u. Reinzuchtssystem (Lafar, 
Handb. d. techn. Mykol., 2. Aufl., V, 1905, p. 258—286) fig. 
0 Haselhoff Emil und Lindau G. Die Beschadigung der Vegetation durch 
Ranch. Berlin (Gebr. Borntraeger) 1903. 413 pp. 27 fig. 
1 — und Mach F. Uber die Zersetznng der Futtermittel durcli Schimmel- 
pilze (Landwirtsch. Jahrb., XXXV, 1906, p. 443) tab. 
2 Hasler A. Kulturversuche mit Crepis- und Oentaurea-Puccinien (Vor- 
laufige Mitteilung) (Centrbl. f. Bakt. u. Par., 2. Abt., XV, 1905, p. 257 
bis 258). 
3 Hassall A. H. Observations on a disease, the production of a fungus, 
occurring in the Lettuce and other vegetables (Anu. and Mag. Nat. 
Hist., XII, 1843, p. 86). 
4 — Observations on Ehrenbergs De Mycetogenesi Epistola etc. (Ann. and 
Mag. Nat. Hist., XIII, 1844, p. 117). 
5 — Krankheit des Gfartensalates (Flora, XXVIII, 1845, p. 592). 
f» Hasse H. E. Lichens of the Vicinity of Los Angeles, I (Erythea, III, 
1895, p. 41). — II (1. c., IV, 1896, p. 96). — III (1. c., IV, 1896, p. 106). — 
IV (1. c., IV, 1896, p. 150). 
7 — New Species of Lichens from Southern California as determined by Dr. 
W. Nylander and the late Dr. Stizenberger (Bull. Torr. Bot. Club, XXI V, 
1897, p. 445). 
8 — New species of Lichens from Southern California determined by Prof. 
W. Nylander (Bull. Torr. Bot. Club, XXV, 1898, p. 632). 
9 — Lichens of Southern California. Second Edition. Los Angeles (B. R. 
Baumgardt et Co.), 1898, 8°, 18 pp., 
10 — The genus Dirina in Nortli America (Bull. Southern Californ. Acad. of 
Science, I, No. 3, 1902, p. 26). 
H — Contributions to the Lichen-Flora of the Californian Coast Islands 
(Bull. of the Southern Californ. Acad. of Science, II, 1903, p. 23, 33). 
12 — Additions to the Lichen-Flora of Southern California (Bull. of the Sou¬ 
thern Californ. Acad. of Science, II, 1903, p. 52, 58, 71). 
13 — The Lichen-Flora of San Clements Island (Bull. of the Southern Cali¬ 
forn. Acad. of Science, II, 1903, p. 54). 
14 Hasselbom Nicolaus. Aphorismi de morbis plantarum. Aboae 1748,4°, 8 pp.) 
15 Hasselbring H. A new Species of Globulina (Gl. Antennariae) (Bull. Torr. 
Bot. Club, XXVII, 1900, p. 402—404) fig. 
16 — Comparative study of the development of Trichurus spiralis and Stysanus 
Stemonites (Bot. Gaz., XXIX, 1900, p. 312—322) tab. 
17 — Canker of Apple Trees (lllin. Agrie. Exper. Stat., Bull. 70, 1902, 
p. 225—239). 
