ADIETIA. 



475 



latter in being spirally crowded around a stamtnal column and not 

 in globose clusters; the anther cells split obliquely and not transversely 

 as in Abies and Tsuga. hi the cones are combined characters 

 occurring in all the other genera; they are pendulous as in Picea 

 and Tsuga but differ from both in the bracts being longer than the 

 scales and prominently exserted as in some of the species of Abies. 

 The preponderance of agreement is with Abies but with such a 

 marked difference in the cones that the Douglas .Fir has been 

 generically separated from it by most recent authors. 



Fig. 1-20. 1, Staminate floAverof Atrietia Douglasii; nat. size. 2 and :;, side and front view of anthers before 

 dehiscence; 4 and 5, after dehiscence, X 10 ; 6, three fresh pollen grains ; 7, two pollen grains after exposure 

 to diy air fifteen minutes, X 120. 



Another Fir aberrant in some of its characteristics from every other, 

 was discovered by Robert Fortune in south-east China and introduced 

 by him about the year 1846. It was cultivated under the name of 

 Abies Fortunei but all the originally raised seedlings planted out in 

 this country seem to have perished in the course of a few years and 

 a similar fate has probably befallen plants raised from seeds obtained 

 since, doubtless from climatic causes. As Fortune's Fir is apparently 

 not destined to have a place in the British Pinetum, the interest 

 attached to it in this country is solely scientific and the notice of it 

 in these pages is accordingly brief ; its history and peculiarities arc 1 

 elaborately discussed by the authors quoted after the description, and 

 to their writings the reader is referred. The most marked characteristic 

 which distinguishes Fortune's Fjr from every other is the umbellate 

 arrangement of the staminate flowers, and <n this ground chief! v 

 Dr. Maxwell Masters in his recent revision of the Coniferse has adopted 

 the genus Keteleeria, created many years ago for its reception by 

 Carriere, the author of the " Traite General des ( 1 <>niferes," by reason 



