304 



JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



Taxodium distichum has nowhere in Denmark attained such an 

 age and development as to be able to show its interesting root-knots, 

 or " knees," such as are to be seen in their fine development at Syon 

 House, near Kew, and perhaps in other parts of Great Britain, and 

 in some localities on the Continent, especially in France. But still 

 very nice plants are to be seen in Denmark, where there are speci- 

 mens of 40 feet high and more. Near Copenhagen a fine plant is 

 to be seen near Aurenhoei on the Strandvej ; nice trees have also 

 developed themselves well at Aalholm on the island of LoUand, at 

 Tranekjor on the island of Langeland, and at Damgaard in Jutland. 



In the Botanic Gardens at Hamburg I have seen several still 

 larger plants ; but on inquiry it was said that the plants produced no 

 cones. 



Taxodium distichum does not thrive well in Southern Norway. In 

 Sweden it is rare, and perhaps not cultivated out of doors farther 

 north than the southern parts of the continent and on Gothland. 



T. d. pendulum. Whether this is a Glyptostrobus or not still 

 remains to be determined. 



T. mexicanum, Carr. Conif. ed. 2, 186, Mexicanische Sumpf- 

 Cypresse. T. mucronatum, Ten. Osserv. su di una plant. Conif. del 

 Gen, Taxodium (Modena, 1853), t. 1 and 2. T. distichum, H. B. et 

 Kth. Nov. Gen. et Spec. PI. ii. 4. T. Montezumx, Decne. Bull. Soc. 

 Botan. 1854, i. 71. T. distichum mexicanum, Gord. Pinet. 307. 

 T. distichum pinnatum, liort. T. pinnatum, hort. aliq. T. distichum 

 virens, Knight, Syn. Conif. 21. T. distichum excelsum, Both, ex 

 Gord. Pinet. Suppl. T. virens, hort. T. Hugeli, Laws, ex Gord. 

 Pinet. I.e. Cupressus disticha sempervirens, Rinz. ex Gord. Pinet. 

 Suppl. I.e. 



Habitat. — In temperate Mexico, where it forms large forests on 

 mountains at an elevation of from 5,000 to 8,000 feet. In the city 

 of Mexico enormous and grand trees are to be found. 



Introduced into Europe about 1840, or before. Has not proved 

 hardy in Denmark. 



13. GLYPTOSTROBUS.— Endl. Conif. 69 (except sp.) ; Carr. 

 Conif. 450 (except sp.) ; Gord. Pinet. 89. Thuya spec. Poir. 

 Diet. Encycl. v. 305 ; Staunt. Embassy to China, 436 ; Lamb. 

 Pinet. ed. 2, 115. Taxodii spec. Brongn. in Ann. des Scienc. Nat. 

 ser. 1, XXX. 184, and ser. 2, xii. 232. Schuberti a spec. Spach, Hist, 

 des Veg. Phan. xi. 352. 



Flowers monoecious ; male flowers perhaps not yet described ; 

 female, ovate catkins on the end of small side-branches. 



Cones ovoid, ligneous ; the scales soon fall ofi". 



Seeds two, upright, ovoid, depressed ; ripen in one year. 



This genus is only to be found in China. By some authors it is 

 referred to the genus Taxodium. 



