of the Botanic Garden at Berlin. 



301 



286. Osmunda cinnamomea Ijinn. 



287. Todea africana Willd. 



Order IV. Maratti^V^JS. 



288. Mardttia cicutEefolia Kaulf. 



289. Iffi'vis Raddi. 



Order V. Ophioglo'ssbjE.' 



290. Botrychium Lunaria Swartz. 



291. virginicum Swartz. 



292. dissectum Muhlenb. 



293. Ophioglossum vulgatum Linn. 



294. lusitanicum Linn. 



295. pedunculosum Desvaux. 



Order VI. Salvini^V^js. 



296. Pilularia globulifera Linn. 



297. Marsilea quadrifolia ii/m. 



298. Salvinia natans Hoffman. 



Order VII. Lycopodia^ce^. 



299. Lycopodium clavatura Linn. 



300. complanatuni Linn. 



301. pumilum Schlechtendahl. 



302. annotinum Lijzw. 



303. inundatum Linn. 



304. dendroideum. 



305. selaginoides Linn. 



306. /S'elago Lmw. 



307. cuspidatum LinJc. 



308. stoloniferum Swartz. 



309. brasiliense Raddi. 



310. helveticum ifwH. 



311. denticulatum Z//wre. 



312. Bernhard/a dichdtoma Willd. 



§ iv. Notes on the Trees in the Berlin Botanic Garden in 1835, Extracted 

 from the Return Paper filled up under the direction of M. Otto, the 

 Director. 



[The Berlin Botanic Garden being unquestionably the richest in species on 

 the Continent, we consider it will be of general interest to collectors of trees 

 and shrubs, to be made acquainted with the species which stand in the open 

 air there; with a view not merely to the increase of our knowledge generally 

 as to botanic gardens and climates relatively to vegetation, but to facilitate 

 exchanges of plants and seeds. Planters of trees in the coldest situations in 

 Britain may safely calculate on the species which stand the open air in the 

 Berlin Botanic Garden being quite hardy.] 



Magnolia acuminata, twenty-five years old, is 30 ft. high ; the diameter of 

 the stem 10 in., with a loose and spreading head. M. tripetala, about twelve 

 years planted, is 15 ft. high j the diameter of the stem 5 in., with a loose and 

 spreading head. M. glauca is a fine tree, but does not flower here. M. ma- 

 crophj'lla, 10 ft. high, is well grown, and has stood the open air for about five 

 years. 



Liriodendron Tulipifera, from fifteen to eighteen years planted, is from 30 ft. 

 to 40 ft. high : in general, it stands the winter, but is sometimes killed down to 

 the ground, by the frost. 



Tilia alba and T. glabra, thirty years planted, are from 20 ft. to 25 ft. high ; 

 the diameter of their trunks 1 ft. 3 in., and of the heads 18 ft. T. americana, 

 eighteen years planted, is from 18 ft. to 20 ft. high, with a trunk 1 ft, in 

 diameter. T. laxiflora, eighteen years old, is 12 ft. high, and the diameter of 

 the trunk 5 in. ; but it is not particularly well grown. 



A'cer dasycarpon, twenty-five years planted, is 3 ft. high, with a trunk l§ft. 

 in diameter ; the head loose. A. monspessulanum, eighteen years planted, is from 

 12 ft. to 14 ft. high. A. obtusifolium, about the same. A. pennsylvanicum 

 grows rapidly in height. ^. platanoides, thirty years planted, is from 20 ft. to 

 30 ft. high. A. rubrum has a slight stem, but is tolerably high. A. saccharinum, 

 forty years planted, is 30 ft. high, with a trunk 9 in. in diameter. A. neapoli- 

 tanum, six years planted, is 15 ft. high : it is a beautiful tree, which, however, 

 is tender when young. A. Negundo, twenty years planted, is from 18 ft. to 

 20 ft. high ; and the diameter of the trunk 9 in., with a very loose head. 



^'sculus Hippocastanum is quite hardy. ^. rubicunda grows rapidly : 

 being grafted on JE. Hippocastanum, it produces a beautiful head, and its 

 flowers are a great ornament to the garden. 



Pavk flava, rubra, and pallida, from fifteen to twenty years planted, are about 

 15 ft. high. 



Kdlreilteria paniculata, at 16° or 20'^ of Reaumur [from 2°, to 13° below zero, 



