270 HORTICULTURE [Bot. Absts., Vol. VI, 



1865. Pinelle, J. Pterocarya stenoptera. Rev. Hortic. [Paris] 92:91-92. Fig. 22. 

 1920. — This thoroughly hardy species is vigorous, indifferent as to soil, and deserves to be more 

 generally planted. It has proven entirely satisfactory as a street tree in Paris. Propagation 

 is most readily effected by seeds, though shoots are produced freely fron the root; cuttings 

 are also employed. — E. J. Kraus. 



1S66. Poupion, J. Les Catasetum, leur culture. [Growing Catasetums.] Rev. Hortic. 

 [Paris] 92: 98-100. Fig. 28-25. 1920. — Species and varieties of this genus are not generally 

 seen in the collection of either commercial or amateur orchid growers. Usually the plants 

 degenerate and die soon after importation or at least flower but rarely. This condition can 

 be corrected through cultural methods. The plants should have complete rest without water- 

 ing from November to March, in a cool house. They may then be completely potted anew, 

 brought into a temperature of about 18° to 23°C, and watered sparingly after growth begins 

 by dipping the pots into water the temperature of the greenhouse. When the flowers appear 

 in April or May, the watering must be further decreased, and special care exercised to prevent 

 cither the direct rays of the sun or drafts of air from striking the new growths which reach 

 maturity about November, at which time the rest period begins. This method of treatment 

 has been employed with entire success with eleven species and varieties of this genus. — 

 E. J. Kraus. 



1867. Poupion, J. L'Inobulbon munificum Kranzlin. Rev. Hortic. [Paris] 92: 64-66. 

 Fig. 15-16. 1920. — The separation of Dendrobium muricatum Finet and D. muricatum muni- 

 ficum Finet on the basis that the former produces a single flower cluster while the latter pro- 

 duces several is untenable, since both in culture and in the native state the same plant may 

 produce single or multiple clusters, depending upon its vigor. Kranzlin considered this form 

 generically distinct from Dendrobium, and made two species on the basis of the single or 

 multiple character of the flower cluster; the former he called Inobulbon muricatum, the latter 

 lnobulbon munificum. These two species are one and the same. A detailed description is 

 given. The species requires a warm house throughout the year, and offers interesting 

 material for hybridization. — E. J. Kraus. 



186S. Proschowsky, A. R. L'Aralia a papier sur la Cote d'Azur. [The paper Aralia at 

 Cote d'Azur.] Rev. Hortic. [Paris] 92: 103. 1920. — Tetrapanax papyrifer C. Koch has 

 proven an excellent, partially hardy ornamental. Though it flowers profusely, no fertile 

 seeds are produced. It propagates itself very readily, however, by means of sprouts from 

 the roots, to the extent that frequently a group of mass effect is produced about a single mother 

 plant. The pith is said to be used in China and Japan for the manufacture of a superior grade 

 of paper. — E. J. Kraus. 



1869. Proschowsky, A. R. Les Coniferes dans les terres calcaires sur la Cote-d'Azur. 

 [Conifers in calcareous soils at Cote-d'Azur.] Rev. Hortic. [Paris] 92 : 75. 1920.— In addi- 

 tion to the Aleppo pine, which is found abundantly as a native in the district mentioned, 

 the four conifers most resistant to calcareous soils are Pinus excelsa Wall; Pinus canariensis 

 C. Sm; Pinus Laricio Poir; and Pinus radiata D. Don. Among the other resistant conifers 

 the following are mentioned: Picea Morinda Link; Cedrus Deodara Loud; Cupressus semper- 

 virens L; Cupressus lusitanica Mill; Cupressus guadalapensis S. Wals; Cupressus macrocarpa 

 Hartw; Cryptomeria japonica Don.; Araucaria excelsa R. Br.; Araucaria Bidwilli Hook; 

 Thuyopsis dolabrata Sieb. and Zucc; species of Podocarpus, Cephalotaxus and Juniperus, 

 and others. — E. J. Kraus. 



1870. Ridsdale, P. S. The Memorial Trees of the United States. Garden Mag. 30: 

 177-180. 2 fig. 1920.— A discussion of the movement on foot all over the country to plant 

 trees as memorials, giving methods of planting and caring for different kinds of trees. — 

 //. C. Thompson. 



