850 



JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



Odontioda x Vuylstekese. By W. B. H. {Bot. Mag. t. 7990).— Of 



garden origin. Nat. ord. Orchid acece ; tribe Vandece. This is a bigener 

 between Odontoglossum nobile and Cochlioda Noetzliana. It is about 

 a foot high. Flowers 2| in. across. Crimson at the base, white above 

 the middle, spotted w r ith red and pink round the margin. — G. H. 



Odontioda x Vuylstekeae (Orch. Bev. vol. xii. p. 209; fig.).— 



The illustration of this hybrid, with the generic species used in its 

 production, is well reproduced. Interesting notes are also appended. 



h. j. a 



Odontoglossum x Brandtii. By R. A. Rolfe {Orch. Bev. vol. xii. 

 p. 240). — Descriptive characteristics and the history of this natural hybrid 

 are included. — H. J. C. 



Odontoglossum apterum ' Gurney Wilson ' (Orch. Bev. vol. xii. 



p. 233, fig.). — Particulars of the history of the species, better known 

 in gardens as O.nebulosum, and a figure of Mr. Wilson's variety are given. 



H. J. C. 



Odontoglossum crispum, Hybrids of [Orch, Bev. vol. xii. 

 p. 8 ; figs.). — Historical and interesting particulars of both natural and 

 garden-reared hybrids, with illustrations of 0. x Andersonianum Bogaer- 

 deaimm, 0. x (Wilckeanum) Denisonice Chestertoni, 0. x (W., D. 1 Golden 

 Queen,' 0. Coradinci mirabile, O.xAdriance 'Victoria Regina ' and 

 0. x Armainvillierense ardentissimum and 0. x ivaltonense. Continued 

 again p. 80, with illustration of 0. bellatulum and 0. xmerificum. 



H. J. C. 



Odontoglossum facetum. By R. A. Rolfe (Orch. Bev. vol. xii. 

 p. 70). — Some interesting comparisons are given from the original 

 description, throwing a doubt on the origin of this rare plant. — H. J. C. 



Odontoglossum flavescens. By R. A. Rolfe (Orch. Bev. vol. xii. 

 p. 92). — Particulars of its introduction and the descriptive characteristics 

 are given.— H. J. C. 



(Edogonium, Some Points in the Structure of a Young. 



By F. E. Fritsch (Ann. Bot. xviii. Oct. 1904, pp. 648-653).— Describes 

 the mode of attachment, the basal cell is spherical or oval, a dense 

 mucilaginous mass is present, enveloping the lower surface of the basal 

 cells. In some species the apical cell is provided with a longer or shorter 

 cap of stratified cell-wall substance with square corners, so that the apex 

 of the filament has a rectangular appearance. This was found to be the 

 result of repeated formation of cellulose thickenings, unaccompanied by 

 the usual subsequent stretching. — A. D. C. 



Oldenburgia Arbuscula. By W. B. H. (Bot. Mug. t. 7942).— Native 

 of South Africa. Nat. ord. Compositce ; tribe Mutisiacece. A tree-like 

 shrub, 8 to 6 feet high. Leaves very thick, coriaceous, woolly ; flower- 

 heads large, purple and white ; flowers white. — G. H. 



Olives : Sur une Maladie des Olives due au Maerophoma 

 dalmatica (Thiim.). Par M. A. Maublanc (Bull. Soc. Myc. France 



