528 PRACTICAL BOTANY 



either fresh, 30, 47, 311, or hardened in alcohol, or in picric acid 

 and alcohol, 130, 314, &c. 



*Ficus elastica, the India-rubber plant : grown commonly in 

 green-houses, and dwelling-houses ; the leaf may be used fresh 

 or in spirit, 139. 



*Fritillaria imperialis : a common garden plant, flowering 

 in early summer ; nectaries, 199 ; pollen, 203 ; endosperm, 213. 



Fuchsia : leaf, hardened in alcohol, for water-stomata, 141. 



*Fucus serratus, the common serrate Wrack of all our coasts : 

 found chiefly about half-tide level : material to be hardened in 

 alcohol before use : the whole thallus is required, including the 

 organ of attachment. The male and female organs are on dif- 

 ferent plants, and may be distinguished by their colour with the 

 naked eye, (p. 391). F. platycarpus and F. vesiculosus are also 

 common all round the coast (p. 393). 



*Funaria hygrometrica, a common native Moss, frequently to be 

 found on charred or burnt soil : the whole plant is required, and 

 should be hardened in alcohol (p. 342, &c.). 



Geaster, a genus of rather uncommon Gasteromycetous Fungi, 

 461. 



Geranium, Scarlet (see Pelargonium). 



*Glceocapsa, a genus of gelatinous Algse, belonging to the 

 Cyanophyceee : it grows on wet rocks, and is commonly found 

 forming a iilm on the inner surface of the glass of damp con- 

 servatories (p. 452). 



Gomphonema, a genus of stalked Diatoms, commonly to be 

 found attached to the surface of submerged fresh-water plants, 449. 



*Grapes : ripe, fresh, 221. 



Graphis, a genus of Crustaceous Lichens, commonly found on 

 the smooth bark of trees, and appearing as irregular dark lines 

 breaking through the surface of the bark (p. 479). 



Hakea suaveolens : exotic shrub ; leaf, 140. 



Hedera Helix, the common Ivy : stem, fresh, 65. 



*Helianthus annuus, the Sunflower : ripe fruits, to be obtained 

 from seedsmen, 216 ; whole plants, 54 ; stem, fresh or in spirit, 6 1 ; 

 young stem, fresh or in spirit, 76 ; apical bud, hardened in spirit, 

 and taken in early summer, 79 ; leaf, fresh or in spirit, 122 ; root, 

 148 ; root apex, from dry fruit, 157 ; mature capitulum, fresh or 



