THE EXPLORATIONS OF HARTWEG IN AMERICA. 53 



flank of tills great mountain range, I found at last the long-wished-for 

 Abies bracteataj' This remarkable fir attains the height of 50 feet; 

 one-third [of the stem] is clear of branches, and the remainder 

 forming an elongated pyramid, of which the upper part, for three 

 feet, is productive of cones. Having cut down some trees, I found 

 to my regret that the cones were but half grown and had been 

 frost-bitten. ... I was thus precluded all hope of introducing 

 this remarkable fir into Europe." Hartweg journeyed as far south 

 as the missions of San Luis Obispo and Santa Inez, and returned to 

 Monterey. After one more visit to the "continuation of the San 

 Antonio Range," he sailed for Europe with his collections, in 1848. 



An enumeration of his plants from California, Mexico, Central and 

 South America, and a systematic description of the new forms, was 

 undertaken by George Bentham, and appeared in the volume so well 

 known to West American botanists as "Plantse Hartwegianse." In 

 this work, eighty-one species from his Californian collection were de- 

 scribed as new, some of these being published also in De Candolle's 

 Prodromus. His collection, in addition, furnished material for va- 

 rious contributions by Bentham and by Lindley to the "Proceedings" 

 and the " Journal " of the London Horticultural Society and the 

 "Botanical Register." Various numbers of the collection were at a 

 later date published as new by Dr. Gray and Dr. Watson, and even 

 within a year a new species has been founded with a reference to a 

 number of Hartweg as part of the type. 



It is said that the Society was not altogether satisfied with the i-e- 

 sult of his work in California, and blamed him especially for not 

 securing seeds of Abies venusta. So far as one may judge from his 

 journal, the character and extent of the country he traversed, and 

 the fruits of his collecting, he was altogether conscientious and faith- 

 ful. However this may be, he left the service of the London Horti- 

 cultural Society, and afterwards became director of the Grand Ducal 

 gardens at Swetzingen, in his native province of Baden. He re- 

 mained in this position until his death, which occurred on the 3d 

 of February, 1871. 



Below is given a list of the Californian plants first collected by 

 Hartweg. Indeterminable scraps of a few were apparently iu 



^ Abies venusta, Sargent. 



