EUCALYPTUS TREES. 295 
stately plants. Several other species are worthy of 
cultivation. 
Cynosurus cristatus, L.— The Crested Dogstail- 
Grass. Europe, North Africa, West Asia. A peren- 
nial grass, particularly valuable as withstanding 
drought, the roots penetrating to considerable depth. 
The stems can also be used for bonnet plaiting. 
Though inferior in value for hay, this grass is well 
adapted for permanent pasture, as it forms a dense 
turf without suffocating other grasses or fodder-herbs. 
Cyperus corymbosus, Rottboell.—India. This state- 
ly perennial species may be chosen to fringe our lakes 
and ponds. It is extensively used for mats in India. 
Cyperus papyrus, L.—The Nile Papyrus. Though 
no longer strictly a utilitarian plant, as in ancient 
times, it could scarcely be passed on this occasion, as 
it ought to become valuable in horticultural trade. 
Its grand aspect recommends it as very decorative for 
aquatic plantations. 
Cyperus Syriacus, Parlatore.—The Syrian or Sici- 
lian Papyrus. This is the papyrus-plant usual in gar- 
den cultivation. The plants in our Botanic Garden 
attain a height of 8 feet, but suffer somewhat from 
frost. Other tall Cyperi deserve introduction, for in- 
stance, C. giganteus, Rottboell, from West India and 
Guiana, these kinds of plants being hardier than 
others from the tropics. I have not ventured to rec- 
ommend the introduction of Cyperus esculentus, L., 
a Mediterranean species, remarkable for its sweet tu- 
bers, known as earth almonds. It is stoloniferous, 
like the allied Cyperus rotundus, L., which has in- 
vaded the culturé ground of many countries as an 
obnoxious, irrepressible weed. The tubers of Cyperus 
esculentus contain about 16 per cent, oil. 
