1 1 2 October, 



Rhinanthidjb (Scrophulariacbjb) : Bartsia, Bartsia. — Euphrasia, Eye bright. — 

 Melampyrum, Cow wheat. — Pedicularis, Louse wort. — Rhinanthus, Yellow 

 rattle. — Veronica, Speedwell. 



ANTiRRHiNiDa: (ScROPHULARiACE^) : .4w<irrAmM»n, Snapdragon. -Z>t^»7a/w, Foxglove. 

 — Linaria, Toad flax. — Mimulus, Monkey flower. — Scrophularia, Water 

 betony. — Verbascum, Mullein. 



LABiATiE : Ajuga, Bugle. — Ballota, Horehound. — Calamintha, CaJamint. — Clino- 

 pod'ium. Wild basil. — Galeopsis, Hemp nettle. — Glechoma, Ground ivy. — 

 Lamium, Dead nettle. — Mellitis, Bastard balm. — Mentha, Mint.— Nepeta, 

 Cat mint. — Origanum, Marjoram. — Prunella, Self heal. — Salvia, Sage. — 

 Scutellaria, Skull cap, — Siachys, Wound wort. — Teucrium, Germander. — 

 Thymus, Thyme. 



Primulace^ : Anagallis, Pimpernel.— Centunculus, Chaffweed. — Cyclamen, Cyclamen. 

 — Glaux, Sea milkwort. — Hottonia, Feather foil. — Lysimachia, Loosestrife. — 

 Primula, Primrose. — Samolus, Brook weed. — Trientalis, Chickweed winter- 

 green. 



Chenopodiace^ : Atriplex, Orache. — Beta, Beet. — Chenopodium, Goose-foot. — 

 Salicomia, Glass wort. — Salsola, Salt wort. — Spinacia, Spinach. 



PoLYGONE^ : Oxyria, Mountain sorrel. — Polygonum, Knot-grass, Persicai-ia. — 

 Rumex, Sorrel, Dock. — Rheum, Ehubarb. 



EuPHORBiACE^ : Buxus, Box. — Euphorbia, Spurge. — Mercurialis, Mercury. 



Urticace^ : Cannabis, Hemp. — Humulus, Hop.— Parietaria, Wall pellitory. — 

 Urtica, Nettle. 



Betuline^. — Alnus, Alder. — Betula, Birch. 



Cupulifer^: Carpinus, Hornbeam. — Castanea, Chestnut. — Corylus, Hazel. — Fagut, 

 Beech. — Quercus, Oak. 



Salicineje : Populus, Poplar and Aspen. — Salix, Osier, Sallow, Willow. 



ConifeRjE : Juniperus, Juniper. — Pinus, Fir. — Taxus, Yew. 



In the third place we may try a ' known substitute,' by which is meant a plant 

 known, in the case of some other larva, to afford nourishment in the absence of its 

 more accustomed food ; thus, by way of giving an example or two, bilberry is the 

 food of Qasi^opacha iUcifoUa, but it will also eat sallow ; ergo, it would seem rea- 

 sonable to suppose that another species, the food of which is bilberry, would also 

 eat sallow, and this in practice we find (very often, at all events) to be the case. 

 And again, it is a curious fact, that all species which feed naturally on the Crucifera 

 will also eat Tropceolum, as well as Reseda, — plants nowise allied to them or to one 

 another. A reference to the following table, which I have endeavoured to condense 

 as much as possible, will, I trust, sometimes assist the reader in selecting a 

 substitute food-plant. 



