APPENDIX C 4 535 



Tropceolum, sp. : fresh petals, 199 ; leaf, 141. 



Tulip : of gardens and conservatories ; flower, 198. 



*Ulmus campestris, the Elm : stems of various ages, young 

 twigs taken at end of May, 188 ; older stems, 97 ; winter twigs 

 for leaf-scars, 143. 



*Ulothrix, a filamentous, fresh-water Alga, commonly found in 

 early summer attached to stones on the margins of ponds : to be 

 used fresh if possible (p. 424). 



Urtica urem, the Nettle : leaf, or stem, 145 ; root, 153. 



Usnea barbata, a fruticose Lichen, to be found especially in Fir 

 woods, and growing attached to the stem and branches of trees 

 475 ; to be used dry. 



Vallisneria spiralis : an exotic aquatic, often grown in aquaria ; 

 leaves, 48. 



Vanda, sp : an exotic Orchid ; aerial roots, 185. 



*Vaucheria, a genus of Siphonaceous Algae : various species are 

 to be found growing on moist soil, on the surface of flower-pots 

 in conservatories, &c., or in still fresh-water : to be used fresh, 

 429. 



Verbascum, sp. : native species of Mullein ; hairs, 146. 



Viburnum Opulus, the Guelder Rose : glands on leaf, 142. 



*Vicia Faba, the Broad Bean : seed, 215 ; seedlings, 226 ; glands 

 on stipules, 142. 



Vitis vinifera, the Vine : stem, 101. 



*Volvox globotor, a green, fresh-water Alga, consisting of 

 spherical, mobile colonies : not uncommon in fresh-water ponds : 

 to be used fresh (p. 437). 



Yucca, sp. ; an arborescent Monocotyledon, commonly grown in 

 gardens ; stem, 169 ; ovary, 206. 



Zea mais, the Maize or Indian Corn ; fruits, fresh, to be 

 bought of seedsmen, 218 ; germination, 227 ; stem of well-grown 

 plant, fresh or in spirit, 161 ; leaf, 172 ; root, 180 ; apex of root, 

 hardened in spirit, 183. 



