74 White. 



above the cotyledons in such plants as Phaseolus multiflorus and Vicia 

 faha, the axillary shoots frequently became fasciated. Double leaves 

 and changes in phyllotaxy appear not infrequently on individuals thus 

 treated. Lopriore (1904), following Sachs' methods, cut off the root 

 tips of seedlings of Vicia faha and obtained fasciated roots in a large 

 number of cases. Goebel (1: 1900, p. 190) calls attention to the 

 production of "fasciations artificially b}^ causing the 'sap' to flow 

 rapidly and with great intensity into a lateral bud which otherwise 

 would only obtain a small part of it". Tliis is his explanation for the 

 common occurrence of fasciated suckers and stool shoots. An intentional 

 slight injury of the growing tip produced fasciation in Ihervillea sonorae 

 (Knox 1907). By crushing young stems of Viola tricolor, var. maxima, 

 fasciated shoots were produced (Blaringhem, 1904 — 5). By removing 

 the main stem of Agrosiemma githago (de Vries M. T. 2, p. 501) just 

 above the cotyledons, the axillary buds, which as a rule do not develop, 

 grew out under this treatment, and frequently became fasciated. 

 Mutilation of the main stem and branches of Barkhausia taraxacifolia, 

 induced more or less fasciation in the branches and inflorescences of 

 this plant, according to Lamarliere (1899). 



Hus (1906) was able to induce fasciation by the use of the 

 following method: 'Plants, just previous to flowering time were subjected 

 to the environments described below': 



"About the time of the appearance of the first flower, the 



plant is kept as dry as possible, only enough water being given 



to prevent wilting. As a result, the flowering period will be 



comparatively short, and in an indeterminate inflorescence, the 



buds near the end of the spike remain undeveloped. If at tliis 



time, the plants are abundantly irrigated daily, occasionally with 



manure water, numerous fasciations will make their appearance. 



But it must be remembered that this result is usually reached 



only with plants which throughout their existence have been 



well nourished and well cared for generally. For no apparent 



reason, one plant will fasciate; while the next one, belonging 



to the same species, remains normal." 



During 1905 fasciations were obtained by this method in Antirrhinum 



majus, Actinomeris squarrosa, Solanum lycopersicum "Ilagnus", Lythrum 



virgatuma, Oenother Lamarchiana and Collomia grandiflora. Experiments 



with Solanum pseudo- capsicum, Capsicum annuuin, Solanum nigrum 



and Ahutilon avicennae yielded no fasciations. 



