. Danish fungi as represented in the herbarium of E. Rostrup;. Fungi. 290 the other species of Melampsora, occurring on Populus,.on the basis of its morphological character. The uredosori are surrounded by a circle of large whitish paraphyses. The teleutosori are placed like small brown crusts on the under-side of the leaves. Populus alba &â alba X fremula, common. 1367. Melampsora cylindrica (Strauss) Rostrup (77 b ^" 5.02 a ^^^). Its uredosori occur in great numbers on the lower side of the lea- ves of Populus, the uredospores are lengthened, almost cylindrical, and their membrane i

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. Danish fungi as represented in the herbarium of E. Rostrup;. Fungi. 290 the other species of Melampsora, occurring on Populus, .on the basis of its morphological character. The uredosori are surrounded by a circle of large whitish paraphyses. The teleutosori are placed like small brown crusts on the under-side of the leaves. Populus alba &â alba X fremula, common. 1367. Melampsora cylindrica (Strauss) Rostrup (77 b ^" 5.02 a ^^^). Its uredosori occur in great numbers on the lower side of the lea- ves of Populus, the uredospores are lengthened, almost cylindrical, and their membrane is furnished with coarse prickles. The teleutosori are only to be found on the upper side of the leaves. Most damaging to the cultivated species of Populus. JuneâOctober. Populus angulata, balsamifera, candicans, onfariensis, trichocarpa, very com- 1368. Melampsora pinitorqua Rostrup (90a^"-â¢), Syn:Cae- oma pinitorquum Al. Braun, Knaekkesyge- svamp, Lit: R 83 d " 89 a ^° c. icon., 02 a ^^"-^'"c. icon., 04 a =2. The fungus is able to kill trees not excee- ding 1â3 years, when over 10 years they are no longer affected. Pinus montana. J. St. Boust, Ulvehus (Vide- baek), Dronninglund, As- aa (Colding), Hagild- gaard, Femhejsande (I. P. Bang), Margrethelund, Rindsholm (Gad), Skovs- gaard by Viborg, Sofiens dal, Klelund Plantage (Fritz), Hoisted (Fritz); F. Lundeborg; S. Tisvil- de. Pinus silvestris. J. St. Restrup (1874 P. E. Mul- ler), Silkeborg, Sofiendal; Sams0 Brattingsborg (Exc. 26/7 87); F. Lundeborg. Fig. 25. Melampsora pinitorqua. Populus fremula & candi- Pinus silvestris with caeoma. -{-. Caeomaspores enlarged. cans, common on the From R 02 a. same localities.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Lind, Jens Vilhelm August, 1874-; Rostrup, E. (Emil), 1831-1907.