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79
Hab. In Jlciis, Lathyro pratensi, Ervis et Piso sativo
mensibus Augusto et Septembri in Fennia saltem australi
passim obvia *).
8. P. Alsinearum Casp. in Ber. der Berl. Acad. d.
Wissensch. 1855.
Stipites validi, aeqvaliter, raro inaeqvaliter 4 —5 —8:ies
dichotomi; rami patentes, ultiini subulati, elongati,
plerum-qve arcuati. Zoosporangia ellipsoidea, utrinqve obtusissima,
pius minus sordide violacea. Oosporae cristis validis,
cras-sis, numerosis, connexis subregulariter reticulatae, laete fuscae.
Syn. Peronospora Alsineamm De B. in Ilcdw. 1864, N:o 9,
p. 135. P. Scleranthi Rab. in Horb. myc. I, 1471 b.
Exsicc. Rab. Fung. cur. II. 378 ot 379. Karst. Fung.
Fenn. 582.
Hab. In Ccraslio vuUjalo et Scleranllio annuo in
re-gione Mustialensi et in paroecia Kimitto mense Julio lecta **).
C. Oogonii membrana vix incrassata, maturitate
cor-rugata, marcescens. Oosporae episporio crasso, cristis
pau-cis, grossis, valde irregularibus, connexis, oogonii
membra-nae hinc inde adglutinatis munitae, irregulariter angulatae.
Mycelium et haustoria (exceptis duabus ultimis speciebus)
divisionis B.
9. P. e ff us a (Grev.) Rab. Herb. myc. 1880.
Stipites fasciculatim e stomatibus egredientes, breves,
crassi, superne 2—5—6-ies, raro 7-ies dichotomi. Rami
Ultimi crassi, breviter subulati, arcuatim deflexi.
Zoosporangia ellipsoidea, conspicue pedicellata, sordide et dilute violacea.
*) P. calotheca De B. 1. c. in Asperida odorata, Galio Apa’
rine et G. Mollugine nec non P. Myosotidis De B. 1. c. in
Myoso-tide stricta, 31. hispida et Asperugine procumbcnte inqvirendae sunt.
**) P. Arenariae (Berk.) De B. 1. c., Arenariam serpyllifoliam et
Moehringiam trinervem iufestans, vix dubie in Fennia invenienda est.
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