212 Trans. Acad. Sci. of St. Louis. 
Peck, CHar_es H.: 
213b. Annual Report of the State Botanist of the State of New York, 
43 Rep., James B. Lyon, Albany, 1890, pp. 26, 
Penzic; O.: 
Funghi ap stomata contribuzione allo studio dei funghi-parassiti pes 
agrumi, Padova ti pp. 124, with 136 plates; Penzig, Just Bot. 
wisi 1882, a“ 
ak oe Edelkastanien und B. Frank’s Mycorhiza. Ber. 
dee: Sai Ges. 1885, p. 310; Sorauer, Just Bot. Jahresb. I, 1885, P. 
513. 
PENZIG, and Poca, T.: 
216. Il male bianco delle viti e degli alberi da frutta, 1884, p. 1; Berend’, 
Just Bot. at 1884, II, is 
217. La malattia dei gelsi nets Sager es dell 1884. Boll. mens. di 
aoe Padova, 1884, No. 4, pp. 56-64; Bot. Centralbl. XX, pP- 
40-50; Ludwig, te ate Jahresb. 1884, p. as 
Prersoon, CHRISTIAN CK: 
218. ee Salven: Erlangen, 1822-8, I, p. 54. 
w, DOP 
st gti Yellows, Houghton Farm Experiment Department. Dis- 
eases of — 1882. Series 3, No. 1 and 2. Appendix to series 3, 
No. * een 2 
PETERMA 
219. ee durch einen Pilz. Wiener Landwirthschaftl. Zeit- — 
ung, 1874; Jahre ee Agri. Chem. 1873-74, p. 341. es 
Pravu-SCHELLENBERG 
219a. Ueber eine hethioeecakeiont. Verbandlungen der Schweizerischen — 
Naturforschenden Gesells. in Basel, 1877, p. 66; J. Schréter, Just Bot. — 
Jahresb. 1877 
Piccone, A.: 
220. Sulla malattia del falchetto nei gelsi. Nuovo giornale botanic — 
italiano, Vol. XI, 1879, pp. 192, 195; Schréter, Just Bot. Jahresb. 1879, 
p. 552. 
Pm, Wihaiween: 
221. Peziza Disease of Potatoes. Gard. Chronicle, 1884, p. 618; Just 
Bot. Jahresb. 1885, p. 290. 
221a. Sclerotium sAaniiee of Potatoes. Gard. Chronicle, XXIII, “ oe. 
p. 110; Ludwig, Just Bot. Jahresb. 1885, p. 290. 
Prvouin oD. 
222, ss malattia della vite, Cassalamaggiore, 1883, pp. 20; L’ Agricoltore — 
eo = ao Lugano, 1884, pp. 77-79; Solla, Just Bot. JahresD- 
et Hi, p : 
Ay Res 
tie 3 funghi parassiti du vitigni, Milano, pp. 96, 1877, p. 12, 4 ee cee 
3 8 papel Just Bot. Jahresb. 1877, p. 98. : 
223a. Sullo svilluppo della Peziza See DeBary e della Pesiss 
Sclerotiorum, Lib. Nuovo Giorn. Bot. Ital. XIII. ; 
ies des chitaigniers dans les Cévennes. Compt. rend. 
h.d. sc. de Pana: 1878, Vol. LXXXVLI, pp. 585-587; Journal de vas 
culture, dir. p. Barral, Vol. IV, 226-229, e 65; Frank, 
