SUB-CLASS II. MONOCOTYLEDONES 
DIVISIONS. 
I. PETALOIDE^. II. GLUMACE^. 
DIVISION I. PETALOIDEiE. 
ORDER LXXIX. AROIDE.^. 
1. ARUM. 
1. A. MACULATUM. Lords and Ladies. Spotted Arum. April — May. % 
Borders of fields and hedge banks, frequent. 
The flowers of this plant have been cited as affording a remarhable instance of the spontaneous heat 
generated in vegetables ; which, according to the observations of Lamarck and Senebier, is evolved in a 
very obvious degree, for several hours subsequent to the first opening of the spatha. After the acrimony 
of the roots has been extracted, either by boiling or baking, they afford a very mild and wholesome 
farinaceous nutriment, resembling salep. At Weymouth, many hundred weights are sold annually for 
starch, or as nourishment for young children and invalids ; and is also used in pastry and puddings. 
2. ACORUS. 
1. A. CALAMUS. Sweet Flag. July. 1/ 
In the ponds at Heslington, near York. Ponds at Rishy, near 
Beverley. Banks of the river near Howsham. Norton fish-ponds, 
near Sheffield. Banks of the Ouse, near Kirby Hall. Lake at the 
slip above Kirkhy Knowle, near Thirsk. Milnsb ridge, near Hud- 
dersfield. Near Doncaster. 
ORDER LXXX. TYPHACE^. 
1. TYPHA. 
1 . T. LATiFOLiA. Great Cat’s-tail. Great Reed-mace. July. 1/ 
In ponds and slow streams, frequent. 
The curious stems of this plant, which resemble a mace, are, on some festivals of the Church in Italy, 
put into the hands of statues of Christ, it being considered as the reed with which the soldiers handed him 
the sponge of vinegar. 
The larva of Plusia Festucce, (the Gold-spot,) feeds upon it. The pupa is placed in a delicate white 
folliculus, situated beneath a leaf of the Typha, which is bent down angularly for that purpose by the 
larva. 
