THE ORCHID REVIEW. 7 5 



Group III, consisting of seven forms, may be termed the Boxallii 

 section, the colour of the upper sepal being Boxallii green to yellow green, 

 with brown and black markings (but no definite spots), narrow white mar- 

 gins, and brown to black median band. Var. Hurstii (see Diet. Icon, des 

 Orch., Cyp. hyb., t. 44 A) has broad, white margins, and rich yellow green 

 ground colour, while var. viride is a beautiful clear green, with a few black 

 markings each side of the black median band, and narrow white margins. 

 (This fact is rather curious, and suggests that P. Boxallii and P. villosum 

 are either very closely related species or that they hybridise naturally in 

 their native habitat). This group, in this character, may be compared to 

 P. Boxallii and P. villosum and their numerous forms. 



Group IV consists of four forms, which are unlike anything else I have 

 seen, and might be described as intermediate, in the colour of the upper 

 sepal, between the three grandparent species P. Boxallii, P. Spicerianum, 

 and P. insigne. The ground colour is yellow-green, marked and shaded 

 with brown and purple, with white apex and broad white margins, and with 

 a distinct median band either brown or purple. Var. Stormberg has a broad, 

 white, dorsal sepal, with a small green area at the base, marbled with 

 purple, which extends into the white, and terminates in a median band. 



So much for a single character. The other characters, both in form and 

 colour, taken singly, come out on analysis in a similar manner ; but if we 

 attempt to consider each hybrid as an individual made up of many charac- 

 ters, the result is a complicated chaos impossible to define. For further 

 details of these hybrids and their bearing upon present day problems of 

 heredity and variation, I must refer the reader to my forthcoming paper on 

 Mendel's " Law " in the Journal of the Royal Horticultural Society. 



With regard to the question of nomenclature raised by M. Cappe : now 

 that the authorities are all of one mind, it is quite a simple matter, and may 

 be summed up in a single sentence : One cross, one name. In this way 

 only can we ear-mark the pedigree of every hybrid, or as the Editor ad- 

 mirably puts it :— -" The common name indicates the common origin." 



C. C. Hurst. 



A remarkable series, and some of the forms are striking and beautiful, 

 particularly those mentioned by name, though a few others are worth taking 

 care of, and a dozen really good things could easily be selected. The charac- 

 ter chosen for classifying them, namely, the colour of the dorsal sepal, is the 

 most striking one, and the one by which they would largely be judged from 

 a florist's standpoint, besides being largely in agreement with the pre- 

 dominating colour of the petals and lip. The more salient features have 

 been so well outlined by Captain Hurst that it is not necessary to add 

 further descriptive remarks, though we may add that the question is one of 



