May, 1920] HORTICULTURE 219 



1545. Mottkt, S. Picea omorica. Revue Borticole 91:260. Fig. 86. Apr., 1919.— 

 This species is recommended as a valuable tree f<>r general planting since it is highly orna- 

 mental, grows rapidly, and thrives under widely different Boil and climal ic c »ndi1 ions. A'. ./. 



Kraus. 



1546. Mottet, S. Eryngium giganteum. Revue Horticole 91:216 217. / i>l. Jan., 

 1919. — -This species is described in some detail and is recommended as being worthy of more 

 extended cultivation as an ornamental, since it is a hardy, biennial, easily propagated by 

 seed and its symmetrical form, and gray-green foliage produce a pleasing contrast with the 

 surrounding plantings. If the whole plants are cut and dried by supporting them base 

 uppermost, they may be used for purposes of interior decoration. Seeds may be obtained 

 from leading seedsmen. — E. J . Kraus. 



1547. Mottet, S. Un nouveau Schizophragma (S. integrifolium). [A new Schizophragma.] 

 Revue Horticole 91 : 275-278. Fig. 87-88. May, 1919.— This species is a striking orna- 

 mental. There are no sterile (lowers in the infloresence, but the latter is showy because of 

 the white, leaf-like bracts which it bears. Because of its hardiness, decidedly superior 

 decorative qualities, and relative ease of propagation it is recommended for general plant- 

 ing. While somewhat similar to Hydrangea petiolaris, it is likely to become even more popu- 

 lar in its use. Several distinct varieties of the type are known. — E. J . Kraus. 



1548. Mottet, S. Nouveaux Viburnum de la Chine. [New Viburnums from China.] 

 Revue Horticole 91:262-264. 1 pi. {colored). Apr., 1919. — This article presents a list of 

 some twenty species and varieties which are briefly but critically described, more especially as 

 to their proved or potential value as ornamentals. — E. J. Kraus. 



1549. Poisson, J. Le Paulownia imperialis au Museum National d'Histoire Naturelle. 

 [[Paulownia at the National Museum.] [Paris] Revue Horticole 91:248-250. 1 pi. Mar., 

 1919. — The seeds of this species were brought to France and planted in 1835. The single seed- 

 ling saved from this sowing is still alive. A reproduction from a recent photograph of it is 

 given. The species is very readily propagated both by seeds and vegetative parts and has 

 been widely distributed. The wood is of some commercial importance, more especially 

 for the making of trinket boxes, ornaments, and other articles not destined for hard usage. 

 The tree grows rapidly and is a desirable ornamental, more especially as a specimen plant. — 

 E. J. Kraus. 



1550. Ritzema Bos, J. De gevolgen van een fout bij het smoeien van laanboomen. [The 

 results of an error in pruning shade trees.] Tijdschr. Plantenz. 24 (Bijblad) : 49-51. 1918. — 

 See Bot. Absts. 3, Entry 1655. 



1551. Rolet, A. Entretien du materiel des serres, baches, coffres. [Preservation of 

 greenhouse, hotbed and box materials.] Revue Horticole 91: 266-267. Apr., 1919. — Because 

 of the high prices and scarcity of many materials used in gardening, it is suggested that 

 special care be taken to prevent deterioration of them. To accomplish this all equipment, 

 etc., should bo kept dry when not in use. Such chemicals as copper sulphate, iron sulphate, 

 coal tar derivatives, and acetate of aluminium are recommended as especially valuable for 

 the treatment of equipment made of straw or wood. — E. J. Kraus. 



1552. Ritzema Bos, J. Bijdrage tot de kennis van de werking der bordeauxsche pap op de 

 aardappleplant. [A contribution to the knowledge of the action of Bordeaux mixture on the 

 potato plant.] Tijdschr. Plantenz. 25: 77-94. 1919.— See Bot Absts. 3, Entry 1654. 



1553. Schoevers, T. A. C. Wat nu in den boomgaard gedaan kan worden ter bestrijd- 

 ing van ziekten en plagen. [What may now be done in the orchard toward combatting dis- 

 eases and pests.] Tijdschr. Plantenz. 25 (Bijblad) : 1-4. 1919.— See Bot. Absts. 3, Entry 

 1658. 



