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simple, many -flowered, higher than the leaves, two feet in length: 

 the leaves alternate, sheathing; the upper ones gradually shorter: 

 the flowers blue, large. Mr. Curtis remarks, that it has, for the most 

 part, a stalk unusually crooked or elbowed. It is a native of North 

 America, flowering in May and June. 



The seventeenth has the scape round or roundish, covered with 

 the sheaths of leaves, many-flowered, longer than the leaves, a foot 

 high: the leaves falcated, acute, striated, nerved: spathes membra- 

 naceous at the edge: the larger petals dilated at the base with dusky 

 veins; lesser snowy-white, with yellowish veins at the base: stigmas 

 snowy-white. From its being the highest of the species of Iris culti- 

 vated in gardens, Mr. Curtis has named it Tall Iris. It is a native 

 of the Levant, flowering in July. 



The eighteenth species has tufted fibrous roots, from which arise 

 many grass-like leaves about nine inches long; from between them 

 come out the stalks, which are shorter than the leaves, and support 

 one purple flower with blue standards. It flowers in May, and is a 

 native of North America. 



The nineteenth has an oval bulbous root, from which come out 

 five or six pale-green leaves, hollowed like the keel of a boat, about 

 six inches long, and one inch broad at the base, ending in points: 

 between these the flower-stalk arises, which is seldom above three 

 inches high, supporting one or two flowers, enclosed in spathes: these 

 have erect petals or standards, of a pale sky-blue colour, and three 

 reflexed petals or falls, which on their outside are of the same colour, 

 but the lip has a yellow streak running through the middle, and on 

 each side are many dark spots, with one large deep-purple spot at 

 the bottom : the leaves are striated and nerved, unequal, and a span 

 in length. It is a native of Persia. 



This is greatly esteemed for the beauty and extreme sweetness of 

 its flowers, as also for its early appearance in the spring, being gene- 

 rally in perfection in February or the beginning of March, according 

 to the season. 



Martyn observes, that " like the Hyacinth and Narcissus, it will 

 blow within doors in a water-glass, but stronger in a small pot of 



2 I 



