Oct. io, 1913 
Citrus Ichangensis 
3 
Citrus ichangensis Swingle. 
A spiny shrub or small tree usually 5 to 15 feet high. Leaves narrow, 4 to 6 times 
longer than wide, mostly 80 to 115 by 18 to 30 mm., with very large broadly winged 
obovate or oblong spatulate petioles evenly rounded at the tip and narrowed abruptly 
at the base, usually 35 to 60 by 20 to 30 mm.; with ovate-acuminate laminae more or 
less caudate, emarginate at the tip and evenly rounded or bluntly pointed at the 
base, usually 30 to 60 by 18 to 30 mm., often not equaling the winged petiole in area. 
Flowers about 25 mm. in diameter, 5-merous; stamens 20, at first all connate to the 
tips, finally breaking up into several bundles, about 10 mm. long. Pistil about 10 mm. 
Fig. 3 .—Citrus ichangensis „ n. sp. t from paratypes in the National Herbarium: E. H. Wilson No. 4737: 
A , Cross section of a large fruit; natural size. B, seeds; natural size. (Drawn by J. F, Brewer.) 
long; stigma nearly as large as the ovary; style short, caducous; ovary 8 to 11 celled; 
ovules numerous in each cell. Fruit large, slightly oval, 8 to n by 7 to 10 cm., with 
a rough and furrowed base and a broad very low papilla at the tip, about 25 mm. in 
diameter, circumscribed by a shallow furrow; peel rather rough, 6 to 10 mm. thick. 
Segments 8 to 11, nearly half filled with seeds; pulp vesicles fusiform, 8 to 12 by 
2 to 4 mm. on stalks 2 to 8 mm. long. Seeds very large, usually 16 to 18 by 11 to 12 
by 7 to 10 mm., more or less angular from mutual pressure, 40 to 70 per fruit, polyem- 
bryonic; cotyledons thick and fleshy. (See PI. I and figs 1 to 7.) 
