468 APPENDIX II. 



Lilium. Cell and nuclear division, 438. Flower-buds of different ages. 



Fresh, and in absolute alcohol. (As substitutes, Fritillaria, Alstrw- 



meria.) 



candidum. For stomata, 86. Leaves. Fresh, or in alcohol. 

 Lime. See Tilia. 

 Liverworts. See Marchantia. 



Lupinus albus (Lupine). Aleurone grains, 32, 34. Seeds. Dry. 

 Lycopersicum esciilentum (Tomato). For red chromatophores, 55. Fruit. 



Fresh. 

 Lycopodium romplanatum (Club-moss). Structure of stem, 176. Stems. 



Fresh, and in alcohol. 

 Lysimuchia (Loosestrife). Development of pollen-tubes, 393. Structure 



of ovary, 397. Fully developed flowers. Fresh. (Substitute for 



Primula.) 



M. 



Maize. See Zea Mais. 



Malm crispa. Pollen-grains, 388. Flowers. Fresh. (Substitute for 



Althcea rosea, Hollyhock, q.v.) 



Maple (Acer). Autumn coloration, 58. Leaves. Fresh. 

 Marchan tia polymorpha. Vegetative structure, 233. Thai 1 us. Preferably 



fresh, or in alcohol. 



Reproductive organs and sporogones, 339. Receptacles. Fresh, 



and in alcohol. June to August. 

 Mare's-tail. See Hippuris vulgaris. 

 Matthiola annua (Ten- week Stock). Hairs, 92. Leaves. Fresh, and in 



alcohol. Late spring and summer. 

 M ilium hornum. Reproductive organs and sporogonia, 345. May and 



June. Fresh, or in alcohol. 



undulatum. Vegetative structure, 228. Fresh. (As substitutes, 



Mnium hornum, or Polytrichum.) 

 Monkshood. See Aconitum Napellus. 

 Monotropa Hypopitys (Bird Rape). Structure of embryo-sac, 400. Flowers. 



Fresh. Found occasionally in woods, etc., especially under beech 



trees ; flowers in July and August. It should be examined fresh, as 



it becomes brown and opaque in alcohol. It bears transport very 



well, and can be preserved fresh for some time in a glass of water. 

 Morchella esculenta (Morell). Vegetative structure and cell-contents, 326. 



Fresh or dry. 



Morell. See Morchella esculenta. 

 Mosses. See Mnium, Polytrichum, Funaria. 



Mucor Mucedo (Pin-mould). Structure and reproduction, 311. Found in 

 a few days on a piece of damp bread placed under a bell-glass, or on 



fresh horse-dung similarly placed. For zygote production, see p. 



315. 

 Mullein. See Verbascum. 



