EUCALYPTUS TREES. at 
The fibre of the stem can be made into cords and pa- 
per. 
Hydrastis Canadensis, L.— North America. The 
Yellow Poccoon. <A perennial herb, utilized in medi- 
cine. The root contains two alkaloids : Berberin and 
hydrastin. 
Hyascyamus niger, L.— The Henbane. Europe, 
North Africa, extra-tropic Asia. An important me- 
dicinal herb of one or two years’ duration. It contains 
a peculiar alkaloid : Hyoscyamin. 
Hyphene Argun, Martius. — Nubia. Probably 
hardy in the warmer parts of our colony. 
Hypheene coriacea, Gaertner. —Equatorial Eastern 
Africa. The dichotomous Palm of the sea-coast re- 
gions. It attains a height of 80 feet. 
Hypheene crinita, Gaertner. (H. Thebaica, Marti- 
us. )—Abyssinia, Nubia, Arabia, and Egypt, as far as 
31° north, and southward to the Zambesi, Nyassa, 
and Sofala. The Gingerbread-palm or Doum-palm. 
It is much branched and attains a height of about 30 
feet. The mealy husk of the fruit is edible. Grows 
away from the sea. 
Hypheene ventricosa, Kirk. — Zambesi. Loftier 
than the other species. Stem turgid toward the mid- 
dle. Fruit large. 
Hypocheeris apargioides, Hook and Arn.—Chile. A 
perennial herb. The root is used for culinary pur- 
poses, like that of the Scorzonera Hispanica. } 
Hyphocheeris Scorzonere, F. v. M. (Achyrophorus 
Scorzonere, Cand.)—Chile. Of the same use as H. 
apargioides. Allied species of probably similar utility 
exist in Western South America. 
Ilex Paraguensis, St, Hilaire.—Uruguay, Paraguay, 
