No. 2, September, 1920] HORTICULTURE 239 



species M. simuland Marloth and M. tcsticulalum Jacq. which has white, glaucous leaves, are 

 equally remarkable. .1/. p*< lulnlruncatdliun Bcrgcr, has its leaves reduced to flattened balls, 

 while those of M. continuum N. E. Brown, from Damaraland, are covered with small, white 

 tubercles. The leaves of M. tigrinum are marked with white and are bordered with long 

 hairs, whereas those of M . felinum Haw arc denticulate. M . digitatum Ait. resembles a very 

 large ringer, and M. Barklyi N. E. Brown is eaten by animals because of the large leaves 

 which are filled with a watery sap. There are three native European species, M. angulatum 

 Thunb., M. cordi folium L. and M. cryslallinam, the leaves from all of which may be used in 

 the same way as is spinach. — E. J. Kraus. 



1S16. Lantes, Adelaide. El alamo. [The pipal tree.] Revist. Agric. Com. y Trab. 2: 

 612-613. 8 fig. 1919. — It is pointed out that the pipal tree (Ficus religiosa) is undesirable for 

 common planting in parks and along roads. Its roots injure cement work, the leaves 

 fall continuously, the fruits fall in quantities, and the trees are favorite retreats of birds. 

 Other trees are mentioned which are preferred. — F. M. Blodgctt. 



1817. Manrin, G. Support rotatif pour plantes d'appartement. [A rotary support for 

 house plants.] Rev. Hortic. 91: 331. Fig. 102-103. August, 1919. — A brief description and 

 working drawings are given. — E. J. Kraus. 



1818. Marie-Victorix, Fr. des E. C. Le "Micrampelis lobata." "Une Plante lance- 

 torpilles." [Micrampelis lobata (Michx.) Greene.] Naturaliste Canadien 46 : 172-174. Feb., 

 1920. — A graphic popular sketch of an interesting cucurbitaceous plant used for veranda 

 decoration, found growing native in fertile soil along water courses in southern Canada. — 

 A. H. Mac Kay. 



1S19. Meyer, Rtjd. Kulturregeln aus alter Zeit. [Culture rules of ancient times.] Mon- 

 atsschr. Kakteenkunde 29: 37-41. 1919. — In this chapter, which is a continuation from the 

 volume for 1917, page 120, are discussed the choice, packing, and shipping of cactus speci- 

 mens. — A. S. Hitchcock. 



1820. Millard, Albert. Natural effects in landscape work. Gard. Chron. Amer. 24: 

 103. 1920. — Numerous plants named for use in the natural style of planting. — W. N. Clute. 



1821. Morel, F. Le clematis montana et ses derives. [Clematis montana and its deriva- 

 tives.] Rev. Hortic. 91: 358-360. Fig. 110. 1919.— The hybrid offspring of C. montana 

 grandiflora and C. montana rubens were intermediate in color of flower, and generally more 

 vigorous than the red form. When the former species was crossed with C. repens, individuals 

 were secured which both preceded and followed the parent varieties in period of flowering, 

 and possessed flowers which were larger than those of repens and of greater consistency than 

 those of grandiflora. By careful selection, it was possible to interhybridize some of the 

 latest appearing flowers of C. repens with some of the earliest flowers produced during the 

 second period of bloom of C. montana rubens. From these crosses plants of unusual vigor and 

 substance, bearing flowers of large size, good form and of various shades of rose or with red 

 pencilings, were secured. A succession of blossoms may be secured by growing the following 

 varieties: April— C. montana rubens; May — C. montana grandiflora, then C. repentc-montana 

 rubens with variously colored flowers, and finally C. repente-montana grandiflora with white 

 flowers; June— C. repens; July and August — C. ynontana rubens and C. repentc-montana rubens 

 commence at this time a second period of flowering which may be prolonged into September 

 and October. It may be possible to select a free-flowering, everblooming race from among 

 the individuals disposed to flower more than a single time during the year. — E. J. Kraus. 



1822. Mottet, S. Les leucanthemes. [The leucanthemums.] Rev. Hortic. 91: 312-313. 

 1 pi. July, 1919. — It seems most probable that L. lacustre Brot. and L. maximum D. C. have 

 contributed principally in the development of the large-flowered marguerites or Shasta 



