758 



JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



Dahlia type. Native of Mexico, and of Dahlia character as to half- 

 hardiness. Suggested as good material for hybridisation with Dahlias in 

 cultivation.— C. T. D. 



Holland House. By G. S. Boulger (Gard. Chron. No. 809, p. 425, 

 figs. 161 to 169; June 28, 1902).— This well-known house and its 

 grounds are described, and several views are given of both. The 

 erection of the house was commenced in 1617, but it was then known as 

 Cope's Castle, after the name of the owner of the property. The grounds 

 were originally laid out about 1769, when in the possession of Henry Fox, 

 afterwards Lord Holland, by Charles Hamilton of Pain's Hill ; but the 

 present owner, Lord Ilchester, has done much towards bringing the 

 gardens to their present perfection. — G. S. S. 



Hollyhocks : why they fail (Garden, p. 157 ; 6/9/1902).— A 

 question is asked of Messrs. Webb & Bland, the well-known Hollyhock- 

 growers, as to the means of getting rid of the disease. The reply is : " We 

 have found nothing of any good in the way of dressing, but find from 

 experience that the hardier the plants Are treated the less they suffer from 

 it. Instead of wintering under glass as formerly, they succeed much 

 better by being planted in the autumn in moderately rich soil away from 

 the drip of trees, and as much exposed as possible to the fresh air, with 

 liberal waterings with liquid manure when the buds are forming." 



E. T. C. 



Honekenya ficifolia. By Sir J. D. Hooker (Bot. Mag. tab. 7836). 

 — Nat. ord. Tiliacece, tribe Tiliece. Native of Tropical Africa. It is a 

 stellately pubescent shrub with a fibrous brown bark, large sub-solitary 

 flowers with broadly clawed purplish-pink petals, the flower being 3 inches- 

 across. The leaves are 6 inches long and five-lobed. — G. H. 



Horticulture in California. [U.S.A. Exp. Stn. California, Bep. 

 1898-1901.) This report gives an outline of the work of an experiment 

 station and shows well the value of such stations to the agricultural 

 and horticultural industries of the neighbourhood. — F. J. C. 



Horticulture in Missouri. (U.S.A. St. Bd. Hort., Missouri. Bep. 

 1902, pp. 408 ; few figures). — This report gives an account of the summer 

 and winter meetings held for the discussion of various matters connected 

 with horticulture, especially fruit-growing, between the scientific staff of 

 the State of Missouri and the growers of fruit and vegetables. 



F. J. C. 



Houstonia caerulea. By S. Mottet (Bev. Hort. p. 319 ; with 

 woodcut ; July 1, 1902). — Introduced by Vilmorin. Plant like a dwarf 

 Lobelia in habit ; flowers blue with yellow eye. Hardy, but best grown 

 in cold frames. Seeds sown in spring flower in June. There is a pretty 

 white variety, which, however, is sterile, but can be propagated by division. 



C. T. D. 



Huron River Valley, A Survey of the. I. The Ecology of a 

 Glacial Lake. By H. S. Reed (with 4 figures) (Bot. Gaz. xxxiv. No. 2, 



