IRIS 
139 
conditions to which they have been accustomed. The degree of 
semi-shade or bright sunlight, as well as soil and moisture con¬ 
ditions, should all be most carefully considered. 
REGELIA AND ONCOCYCLUS AND THEIR HYBRIDS 
This group are the most drought-resistant of all Iris, but are 
quite the most erratic and difficult to grow in the Atlantic Coast 
States. They are all natives of the hilly regions of Asia Minor, 
where the winters are cold and the summers are hot and dry with¬ 
out any rainfall. They bloom earlier than the Tall-Bearded and, 
like them, are lime-lovers. Possibly the best known variety of this 
group is Susiana, distinctive for its peculiar form and color, while 
Korolkowi and Hoogiana, both natives of Turkestan, are also most 
interesting examples. 
POGOCYCLUS 
A group called Pogocyclus that are the result of crossing the 
Oncocyclus and the Tall-Bearded, may prove to be of special in¬ 
terest to gardeners of the arid sections, for they do not demand 
the dormant period that the Oncocyclus require, yet will endure 
drier conditions than the Tall-Bearded. A good collection of Pogo¬ 
cyclus include Psyche, Shiraz, Xwanenburg, Nazarin and lb-Pall. 
EVANSIA 
Another small but distinct class is known as Evansia, whose chief 
characteristic is the ragged crest which replaces the well known 
"beard” of our familiar varieties. A detailed account may be found 
of these delightful little plants in Mr. Wister’s article. (See 
page 145). 
BULBOUS 
The Spanish, Dutch and English compose the Bulbous Iris group 
(see page 146). They are very showy and are of value if used 
singly, or in groups as points of accent in the border. The colors Spanish 
of the Spanish are white, yellow, brown and blue, while the and Dut 
English include the lavender, deep mauve, and violet tones. The 
