SCIENTIFIC COMMITTEE, OCTOBER 26. 



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Carbolic acid as a fungicide. — A letter was read from Mr. Kitley, of 

 the Oldfield Nurseries, Bath, recounting the results of experiments 

 carried out with Tomatos in which the fungi causing " sleepy disease " 

 and other diseases were prevented from developing by watering the soil 

 with a solution of one teaspoonful of carbolic acid to four gallons of 

 water at intervals. 



Scientific Committee, October, 26, 1909. 



Mr. E. A. Bowles, M.A., F.E.S., F.L.S., in the Chair, and seven members 

 present, and Rev. Aikman Paton, M.A., visitor. 



Hybrid Solanums. — Rev. Aikman Paton, M.A., Soulseat, Castle 

 Kennedy, N.B., showed a series of Solanums raised by himself to illus- 

 trate the result of crossing Solarium tuberosum (a wild form from 

 Mexico) and the white- flowered variety of S. Commersonii. He also 

 showed plants and fruits of S. verrucosum, S. etuberosum, &c. The 

 following is a description of the parents used, and the resulting 

 progeny :— 



S. tuberosum (Mexico), wild. — [The Mexican variety used has larger 

 portions of the rhachis bare between the leaflets, fewer leaflets, the 

 terminal leaflets tapering from the base where the lamina is often adnate 

 to the rhachis, and fewer interspersed small leaflets than the Chilian 

 variety.] — Stems, green to purplish, speckled or streaked with green, 

 with wavy green-winged edges. Leaflets, oval, very short stalked, the 

 lamina much raised between the venation, giving the leaves a crumpled 

 appearance, glossy ; edges, crenate. Calyx, hairy, with long, tapering, 

 awl-like points, which turn back from the berry. Corolla, rotate- 

 pentagonal ; edges, arcuate. Colour, dark lilac [R.H.S. Colour Chart 

 202, 2 and 3]. Anthers, short, orange-coloured. Style, slightly pro- 

 jecting beyond the stamens. Berries, somewhat rounded, pointed, 

 heart-shaped, with sloping shoulders at stalk end, covered with white 

 spots, especially at the lower half. Tubers, reddish or white with violet 

 tinge. 



S. Commersonii (Uruguay), white flowering. — Stems, pale green, 

 violet at nodes, especially in axils ; edges, slight, straight, green-winged. 

 Leaves, pale green, sparse. Leaflets, shortly stalked, widely separated on 

 the rhachis, few or no interspersed leaflets, oval obtuse, flat, dull ; edges, 

 plain. Calyx, short, blunt, shouldered with short claws. Corolla, star- 

 shaped, deeply segmented, white (sometimes with a violet tinge on base of 

 hack of petals). Stamens, long, thin, lemon coloured (paler than those 

 ■of S. tuberosum). Style, much exserted. Berries, larger than those of 

 S. tuberosum, heart-shaped, dimpled at stalk end, with sulcus down the 

 middle always visible at stalk end, and, especially if seedless, with few 

 spots. Tubers, yellowish white, warty (lenticels). 



Hybrids of above. — Stems, dark violet, rounded triangular ; edges, 

 winged, green, straight. Leaves, dark green. Leaflets, oval, obtuse, flat, 

 plain-edged, dull. Calyx, short, blunt, shouldered, with short claws 

 (sometimes triangular tapering, with longer claws). Corolla, always lilac 

 [No. 202, 4 and 3], rotate-pentagonal. Style, much exserted. Stamens, 

 pale yellow, long. Berries, bluntly heart-shaped, full at top, covered 



