PUCCINIA. 361 



p. thlaspeos Sclmb. On Thlaspi alpestre and Arahis hirsuta 



P. spergulae D. C. On Spergula. (U.S. America.) 



P. arenariae (Schuni.). On Alsineae and Sileneae, e.g. cultivated Dianthns 



harhatus. (Britain and U..S. America.) 



P. chryosplenii (irev. On Chrysosplenium. (Britain.) 



P. circaeae IVrs. On Circaea. (Britain and U.S. America.) 



P. buxi I). C On Bu.rus sempervirens. (Britain.) 



P. umbilici Ouep. On Umbilicus. (Britain.) 



P. valantiae Pers. On Galium. (Britain and U.S. America.) 



P. asteris Dul)v. (Britain and U.S. America.) On Aster, Artemisia^ 



Achillea, Cirsium, Scabiosa, Doro7iicum. Plowriglit regards P. millefoHi 



Fckl. on Achillea as a distinct species. 



P. veronicae (Schroet.) (Britain). -i 



P. veronicarum D. C (Britain and U.S. America). J- On Veronica.^ 



P. albulensis Magn. J 



P. glechomatis D. C. On Glechoma (JVepeta). (Britain and U.S. America.) 



P. annularis (Strauss). On Teucrium. (Britain.) 



Hemileia. 



Hemileia vastatrix. Berk, et Br. Tin's occurs on the leaves of the coffee 

 plant in Ceylon, Java, and Sumatra. It causes a very destructive disease. 

 Sadebeck recommends as remedies : (1) Eemoval of infected leaves and 

 their sterilization by dilute acids or Bordeaux mixture. (2) Spraying 

 the beds with Bordeaux mixture, so as to kill the spores which have 

 fallen there. 



Several geiiera which do not occur in Europe may be mentioned here, 

 viz. : Uropyxis, Diorchidium, Chrysospora, and Sphaerophragmium ; also 

 Masseella, Phakospora, and Schizospora. ■ They cttutain but few species, 

 and none of inactical inii)ortaii(e. 



Triphragmium.* 



Teleutospores three-celled ; one cell is attached to the sporo- 

 phore, and carries the other two ; each cell has one or more 

 germ -pores. 



Triphragmium ulmariae (Schum.). (Britain.) Uredospores 

 and teleutospores produced on the same plant, Spiraea Ulmaria. 

 The teleutospore-patehes are dark-brown, the uredo-sori reddish- 

 yellow, while the pycnidia (so-called spermogonia) are yellowish 



'Distinction, see Magnus, Btr. d. deutxch. botan. Ge>i., 1890, j). KiT. 

 -Sadebeck, Forstl-uaturwi.'is. Zeitnchrijt, 1895. M. \A'aril, SessionaJ Pape7-'s'- 

 XVII., Colon\l)o, 1S81. 



^^Dietel, Bcrlchte d. deuf-sch. holan. Ges., 1895, p. :r.i2. 



^Bibliography and Revision, by G. Massee, GreviUea, xxi., 189;i, p. 111., 



