758 



JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



NOTES AND ABSTEAGTS. 



Abies pectinata, On the Distribution of the Wood-paren- 

 chyma in. By L. Kny {Ann. Jard. Bot. Buit. 3rd supp. 2nd pt. 1910, 

 pp. 645-648). — The wood of the stem of Ahies pectinata differs from that 

 of Picea excelsa and Larix europaea in that resin passages only rarely 

 occur in it. The wood parenchyma . which in the last two species 

 accompanies the resin passages is found in the silver fir on the borders 

 of the annual wood rings. Kny's researches show that the wood 

 parenchyma is not equally distributed in all parts of the plant. In the 

 inner annual rings of the primary shoot wood-parenchyma is either 

 entirely absent or occurs only very much more sparsely than in the 

 outer rings. It was also found to be absent in the normal wood of all 

 the lateral branches and of the root. — R, B. 



Acanthopanax Henryi {Bot. Mag. tab. 8316). — Nat. ord. 

 Amliaceae; tribe Schefflereae. West China. Shrub, 5 feet high; 

 leaves 5-, rarely 3- foliate; umbels clustered at the end of branches; 

 flowers green; berries black. — G. H. 



Achilleas for the Alpine House or Rock Garden. By W. I. 



(Garden, May 21, 1910, p. 254; 2 figs.). — Many of the dwarfer species 

 are useful for these purposes, and some having silvery foHage are 

 beautiful when not in flower. They may be increased by division or 

 cuttings taken in July in pots. To make a good pan four or five plants 

 should be used in each pan. The following are recommended: — > 

 A. ageratifolia { = Anthemis Aizoon) produces rosettes of silvery 

 leaves with crimped margins; the flowers are pure white with 

 a yellow disc, borne singly on stems 6 inches long. A. argentea has 

 silvery toothed leaves and pure white flowers in umbels on 

 stems 6 inches long. A. x Kellereri has long, narrow, finely 

 toothed leaves in a compact rosette, from which silvery stems 9 inches 

 long bear white flowers in corymbs ; the flowers are lasting and attrac- 

 tive. It is a hybrid between A. ageratifolia and A. lingulata. A. nana 

 has leaves in green rosettes, and white flowers. A. rupestris makes 

 a carpet of green and dwarf foliage, and bears ivory-white flowers 

 on 4-inch stems. A. sericea is like Kellereri, but more compact. 

 A. umbellata is almost shrubby, and has silvery foliage deeply lobed. 



H. R. D. 



Agave Franzosini (Bot. Mag. tab. 8317).— Nat. ord. Amarylli' 

 daceae; tribe Agaveae. Mexico or Central Amer^ica. Eosette 15 feet 

 wide, 11 feet high; leaves 7^ feet long; inflorescence 40 feet high; 

 perianth, brightish yellow. — G. H. 



