APPENDIX C 527 



*Date (PJumix dactylifera} : the "stone," 38, 221, 228. 



* Datura Stramonium, a casual weed : the style and stigma, 

 fresh, 207. 



Davallia, sp. : rhizome, 292. 



Dictyota dichotoma, a marine Alga, which grows fixed upon 

 other Algae, or on rocks, near low-water mark, in summer : not 

 uncommon (p. 381). 



*Digi talis purpurea : flowers (July-September), of various ages, 

 for fertilization, 208. 



*Dracama, stem, 169. 



Dudresnaya, a genus of marine Algse, which grow in summer on 

 rocks or other Algce near low-water mark ; D. divaricata is not 

 uncommon (p. 389). 



Ebony (Diospyros, sp.) : old stem, 100. 



Elceagnus, sp. : leaf, fresh, for hairs, 146. 



*Elder (see Sambucus). 



*Elm (see Ulmus). 



*Elodea canadensis : the common American weed ; an intro- 

 duced plant, to be found universally in still, fresh-water ; to be 

 used fresh ; stem, 171 ; leaf, 180. 



*Equisetum arvense : a common corn-field and road-side weed ; 

 whole plant, which may be obtained throughout the summer, 

 and to be used fresh or in alcohol, 325 ; buds, hardened in alcohol, 

 334 ; fertile stems, with sporangia, to be collected in spring, 338 ; 

 spores, to be sown in spring, 340. 



Equisetum Telmateia : mature stem, summer, 330. 



^Eucalyptus globulus, the Blue Gum of Australia : common in 

 green-houses, leaf, 135. 



* Euphorbia splendens (a commonly grown exotic), or other 

 species of Euphorbia : fresh stem, 120. 



*Eurotium Aspergillus, a mould common on old leather, decay- 

 ing fruit, &c., and may be obtained without fail if a slice of dry 

 bread be kept under a bell-glass for ten days or more (p. 484). 



Fegatella conica, a Liverwort not uncommon on river banks, 

 (p. 367). 



*Fern prothalli are to be found growing on surfaces of pots, &c. 

 in any fern-house, or they may be cultivated on damp soil, or on 

 cork floating in water, from the fresh spores : they may be used 



