314 



Heter-eu-puccinia, st. I on Geranium pratense, not found in Den- 

 mark, St. II— III on the upper-side of the leaves of Polygonum amphi- 

 bium, common; one time only has Rostrup found Uredo on the lower 

 side of the floating leaves of Polygonum (Christiansminde F. ^h 82). 

 This species is often united with no 1450. 



1452. Puccinia bistortae (Strauss) de C, Sydow 04 "\ 



It is impossible to make sure which of the numerous species have 

 their st. II— III on the present Polygonum, either Puce, cari-bistortae 

 Kleb., Puce, angelicae-bistortae Kleb. or perhaps another one. 



Polygonum viviparum. J. Walbums Have ved Aalborg (Oct. 86 J. P. Johan- 

 sen), 0st for S. Tranders (F. K. R.). Polygonum bistorfa. J. Boiler (Jak. Lge). 



1453. Puccinia arenariae (Schum.) Wt., Sydow 04 '°^ Syn: Uredo 

 ar. Schum. no 1566, Uredo alsines Schum. no 1567, Puce, dianthi de 

 C, Leptopuec. dianthi R 02 a "", Leptopucc. arenariae R 02 a "'', 

 Nellikerust (RSSn^^). 



Leptopuccinia ; very common on all the host-plants stated below, 

 the form on Dianthus caryophyllus is sometimes considered an inde- 

 pendent species. And, vice versa, sometimes the two following species 

 are classed under it; some cultivating experiments for proving the 

 limitation of these species are wanting. 



Cerastium caespitosum, Sagina maritima, apetala, ciliata, procumhens, subulata, 

 nodosa, Ammodenia peploides, Arenaria serpyllifolia, Moehringia trinervia, Sfel- 

 laria holostea, palustris, graminea, uliginosa, nemorum, media, Agrostemma 

 githago (thrifty), Melandryum rubrum, Dianthus barbatus (Exs. Sydow no 1865), 

 plumosus, carfhusianorum. 



1454. Puccinia herniariae Unger, Sydow 04^^^ Syn: Puce. Mon- 

 tagnei de Toni, Syll. VII ^=' (see Liro 08 ''''). 



Herniaria glabra. F. Glorup (May 90 see R 92 g ^'*). 



1455. Puccinia spergulae de Candolle, Syd. 04 ^*', Syn: Lepto- 

 puec. spergulae (de C.) R 02 a "", Spergelrust (R 82 b), Lit: R 93 e ". 



Leptopuccinia. Its attacks are often rather destructive to the culti- 

 vated Spergula (see R 06'^). 

 Spergula arvensis, common. 



1456. Puccinia silenes Schroeter, Sydow 04 ^^^ Syn: Puce, lychni- 

 dearum Link. 



Aut-eu-puecinia, st. I June— Sept., st. II— III July— Octob. 

 Silene venosa. S. Fredrikssund ! (Exs. Syd.), Holte ("/g 87 E. W.), Lyngby 

 (M. L. M.). 



1457. Puccinia calthae Link, Sydow 04"°, Kabelejerust (R04a''0. 

 Aut-eu-puecinia, st. I June— July, st. II July— Sept., st. Ill August- 

 October. 



Caltha palustris, very common. 



