398 Gardening Visit to Paris, 



any of the leaves lobed. From a patch of seedlings of about twenty 

 plants, being all that had come up from fifty seeds of A^cer Lobeh'i sown, 

 two plants were the genuine species, A. ^^latanoides, without the bark 

 being in the slightest degree striated. Seeds of A. rubrum have pro- 

 duced plants of A. sanguineum, which has the leaves very glaucous 

 beneath; oi A. coccineum, which nearly resembles J. sanguineum; and of 

 A. eriocarpon. A, obtusatum occasionally produces A. hybridum ; and 

 A. opulifolium produces A. O'palus, A. obtusatum, and other similar va- 

 rieties, to none of which names have been given. A. Pseudo-Platanus 

 has given A. trilobatum. A. lobatum is a very distinct variety, but M. 

 Camuset does not know its origin. A. coriaceum was found in 1830, in 

 a bed of seedlings of A. monspessulanum, and from that plant all others 

 bearing this name sent from the Paris garden have been raised by grafting. 



-^'sculus rubicunda, planted among other trees taller than itself twenty-five 

 years ago, has a trunk not 4 in. in diameter ; but another plant of the 

 same species, planted in a more favourable situation on the same da}', has 

 a trunk above 18 in. in diameter, and a magnificent head. 



Fitis vulpina, the fox grape, has the male and female on different plants, and 

 the female has invariably the larger leaves, and is the stronger plant. 



Aila7itus glandulosa was planted near the museum in 1 793, by citizen Thouin, 

 then director general of the garden, and professor of culture, who named 

 it the tree of liberty, which name it still retains among French gardeners; 



i5^u6nymus nanus Bieb., grafted standard high on the common euonymus, 

 forms a singularly handsome plant, and is never touched by insects like 

 the other species. 



Ceanothus americanus L., raised from seed, exhibits various varieties, with 

 white and blue flowers. 



Virgilia lutea Mich. The original plant brought over by Michaux is 30 ft. high, 

 with a head 34 ft, in diameter, and is now covered with legumes, forming 

 a singularly handsome object. 



Cytisus alpinus purpurascens, M. Camuset believes to be a hybrid seedling, 

 which had been bought by M. Adam, among a number of other seed- 

 lings ; the custom of the nurserymen at Vitry being to purchase seedlings 

 in quantities, and grow them a year or two for sale. This, M. Camuset 

 thinks, is a much more rational mode of accounting for the origin of this 

 hybrid than that of supposing that a shoot from the margin of a dormant 

 eye liad produced it ; and, in this opinion, in the absence of all positive 

 evidence, we concur. Of course this does not account for the very sin- 

 gular anomaly of C. L. purpurascens separating, as it were, into the two 

 original parents. Mr. Herbert's hypothesis will be found in our pre- 

 ceeding volume, p. 289. and p. 381., and M Poiteau's in the current 

 volume, p. 58. 



Robin/a Pseud-Jcacia has produced, with M. Camuset and other cultivators, 

 several varieties which are not yet in cultivation in the trade ; in short 

 every bed of seedlings shows varieties more or less distinct. M. Camuset 

 has named R. P. longipetiolata, R. P. longispina, R. P. macrophylla, and 

 R. P. Norion2fl«a, with yellow foliage, after a cultivator of that name. 



R. viscosa, with M. Vilmorin, has produced plants not in the slightest degree 

 different from R. Pseud-ylcacia. 



Gleditschk triacanthos L., from seed, has produced G. inermis, G. macra- 

 cantha, and G. ferox. G. caspica and G. sinensis seem distinct ; but 

 this genus varies so very much that M. Camuset is uncertain what are 

 species and what are varieties. 



.<4mygdalus nana has produced A. georgica Dec. and A. campestris Ser. 



A. incana produces abundance of small red fruit. 



A. Persica flore pleno, the common double-flowered peach, produces abundance 

 of fruit, the nuts of which invariably produce plants bearing double 

 flowers ; a fact which seems to show that varieties of peaches come 

 tolerably true from seed. Hence, in some situations where the soil is 



