AIJSTRACTS. 569 



from the tropics. Special methods for preserving the vitality of seeds for 

 tropical journeys are described. — W. W. 



Paeonia lutea, Franch. By Sir J. ]). Hooker (Bot. Mag. tab. 7 788) — 

 Native of the mountains of Yunnan, China. It is remarkable' for its 

 woody stem and yellow flowers, 3 inches across, fully expanded It 

 flowered at Kew 1900.— H. 



Pansy Disease, A New (U.S.A. Exp. Stn. Hatch, Report ll 

 1899).— A new disease has appeared among Pansies, spotting the leaves 

 and disfiguring the blossoms, which has been described in Botanical 

 Gazette, March 1899, under the name of Colletofnchum ViolcB tricoloris. 

 Spraying with Bordeaux mixture seems to have done a little good, but it 

 was too late in the season to be very effective. J/. C. C. 



PaPasia (Belmontia) Thomasii. By Spencer Le M. Moore (Joitrn. 

 Bot. 464, p. 260; 8/1901).-Description of a beautiful little new species 

 from the Orange River Colony.— 6r. S. B. 



Papasitism of Species of Botpyospopium. By V. Peglion (Zeit 



f. Pflanz. bd. xi., ht. 2 and 8, p. 89 ; June 1901).-A critical review to 

 prove that these fungi, frequently found on sickly plants, are not the 

 cause of disease, but only follow on a weakened condition due to other 

 causes. — W. G. S. 



Peach Foliag-e and Fung-icides. By W. G. Sturgis (Bep. Connect. 

 Agr. Expt. Station, October 31, 1900 ; Part iii. pp. 219-254 • pis 3-5 

 1901. Quoted in Bot. Gaz. vol. xxxii. p. 66, No. 1). -Experiments were 

 made with (1) Bordeaux mixture ; (2) with a soda-B, in which soda re- 

 placed lime ; (3) with ammoniacal solution of copper carb. ; (4) with cop 

 acetate, and (5) with potassium sulphide. The first was injurious unless 

 very weak ; (2) and (3) equally injurious; (4) harmless, but subacetate 

 injurious ; (5) was harmless and a fairly good fungicide.— B, 



Peach-leaf CupI. By Newton B. Pierce {Bot. Gaz. vol. xxxi 

 p. 207 ; No. 3).— Has notice of this work, which deals with the nature and 

 treatment of the disease. It is published in Bull. 20. Biv of Veq Phvs 

 and Path., U.S. Dep. of Agr., 8vo., pp. 204; figs. 10; plates 30 (1900)' 

 I he losses by this disease are estimated at #3,000,000 annuallv The 

 fungus IS Exoascus deformans. It is shown that the perennial invcelium 

 of this fungus IS responsible for only about 2 per cent, of the infections 

 each spring, the others being due to spores which have remained over 

 winter m the crevices of the bark and between the bud-scales. Ninety-five 

 to ninety-eight per cent, of the injury to the foliage can be prevented by 

 treating the trees, while still dormant, with various spravs, the best bein- 

 a Bordeaux mixture containing five pounds each of copper sulphate and 

 lime, and forty-five gallons of water. The sprays are successful only when 

 applied while the tree is dormant, preferably one to three weeks before 

 the flower-buds open. — G. H. 



Peanut {Bull. Bot. Dep. Jam., vol. viii. p. 87).-A description of 

 •ihe preparation of oil at Marseilles, where more is extracted than 



i; 



