484 
In foliis vivis Solani tuberosi L. et S. utile-tuberosi Klotzsch 
caespites in utraque pagina formans et per stomata erampens. 
Jul.—Septembr. 1854. Schöneberg pr. Berolinum. 
Peronospora Corda |. t. 
Botrytis Auct. ex parte. Monosporium Bonord. Handb. der allgem. 
Mykol. 1851. p. 95 ex parte. 
Stipites extramatricales erecti, continui, non septati, versus 
apicem ramosi, mycelio ramoso intramatricali suffulti, per stomata 
fasciculatim erumpentes. Fructuum genera tria: 1) acrosporae ellip- 
ticae, subglobosae, ovatae, unicellulares, singulae in singulis stipitum 
intramatricalium ramellis obviae, contentu granuloso repletae, basi 
saepe rudimento stipitis instructae ; 2) sporangia globosa, monosporA, 
membrana crassa plus minus brunnea, mycelio intramatricali insi- 
dentia; 3) sporidangia globosa, membrana tenui, sporidiis ovatis, 
ellipticis, cylindrieis, saepe curvatls, minimis, plurimis repleta, my- 
celio intramatricali insidentia. Fungi e cellulosa iodo et acido sul- 
phurico violaceo colorata constantes, in plantis vivis et sanis p& 
rasitici. 
Trib. I. Stipitibus proprie ramosis. 
1. P. devastatrix Casp. 
Botrytis devastatrie Libert in Organe des Flandres ante 
30. August. 1845 secundum Duchartre Rev. bot. I. 151. et 
Morren Ann. de la soc. roy. d’Agriculture et de botani- 
que de Gand 1945 p. 287, 
Botrytis infestans Montagne in concilio Societ. philom- 
30. Aug. 1345, 
Botrytis fallae Desmaz. Ms. 1845, cf. Berkeley. Journ. 
soc. Lond. I. 1846. p. 30. 
Boirytis Solani Harting Ann. se. nat. 1846 p. 44. 
Peronospora trifurcata Unger Botan. Zeitg. 1847 p- 318. 
Peronospora Fintelmannii Casp. Verhandlungen des Verein® 
zur Beförd. des Gartenb. in den Königl. Preuss. Staaten 1952 
XXI p. 327. 
Peronospora infestans Casp. Ms. 1852, Klotzsch Herbar. 
mycol. 1854. No. 1879. 
Caespitibus laxis albidis; stipitibus liberis gracillimis, subflezuo- 
sis, Y/s—t/z altie, proprie ramosis, ramis tantum primi ordin!s, 
numero 2-5, elongatis, attenuatis, plerumque semel — ter nodose- 
inerassatis, Acrosporis ovatis, apice saepe apiculatis , Yynss—'ıss 
altis, "/jias—'/rs' longis, granulis pellucidis incoloratis farctie. 
