Cultivating Plants in Walls. 



61 



Anthyllis 



— vulneraria * 

 Arenaria 



— trinervia 



— verna 



— rubra * 



— serpyllifolia 



— tenuifolia 

 Anethum 



— foeniculus* 

 Apium 



— petroselinum * 

 Acrostichum 



— sept entrion ale * 

 Asplenium *, the genus 



— geterach 



— trichomanes 



— viride 



— rut a muraria 



— adiantum nigrum 



— lanceolatum 

 Adiantum 



— capillus Veneris * 



Under this letter I may name 

 some of the genus Aly ssum , and 

 such of the Agave and Aloe as 

 are sufficiently hardy, having 

 witnessed their success. The 

 American Aloe, as it is popu- 

 larly called, may be thus ma- 

 naged in masonry so as to pro- 

 duce very pleasing effects. 

 Bromus 



— mollis 



— sterilis 



— diandrus 

 Bellis 



— perennis* 

 Borago 



— officinalis * 

 Ballot a 



— nigra 

 Betula 



— alba* 



I have seen this tree growing to 

 the height of twenty feet and 

 more, out of a very thin and 

 well-laid stone wall, without 



any communication with the 

 earth. 

 Carduus 



— lanceolatus 

 Cherleria 



— sedoides* 

 Cotyledon 



— umbilicus* 



— luteum 



With probably any foreign ones 

 sufficiently hardy. 

 Cerastium 



— vulgatum 



— viscosum 



— arvense 



— semidecandrum 

 Cistus 



— helianthemum * 



And I believe every cistus, na- 

 tive, and otherwise hardy. 

 Cardamine 



— hirsuta 

 Cheiranthus *, the genus 



— fruticulosus 



— sinuatus 



— incanus 



I have known only these species, 

 but suspect that all the genus 

 would succeed. 

 Cressis 



— tectorum 

 Convolvulus 



— sepium* 



— arvensis * 



And probably every hardy Con- 

 volvulus and Ipomea. Their 

 creeping powers render 'them 

 peculiarly applicable in certain 

 cases. 

 Chrysanthemum 



— leucanthemum * 

 Cochlearia 



— officinalis 



— greenlandica 



In general not native. 

 Calendula 



— vulgaris*, and 

 Crassula, wherever hardy, * 



