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OF ARTS AND SCIENCES. ° 185 
erose somewhat recurved tips very dark purple, almost black; the 
inner segments shorter, more narrowed below, and with a broad 
yellowish minutely granular fold in the middle, the obtuse tips. 
purple but not so dark as the outer ones: staminal column very slen- 
der, over 3 lines in length; anthers spreading, about 2 lines long: 
the six branches of the style with terminal capitellate stigmas. — 
Collected by Mr. Pringle near Patzcuaro (unnumbered and not 
distributed). The description of this attractive little species has 
been drawn from specimens cultivated and kindly communicated 
by Mr. Edward Gillett, of Southwick, Massachusetts. 
TRADESCANTIA ANGUSTIFOLIA. A very slender grass-like spe- 
cies, 6 inches in height: roots of numerous delicate fibres: stems 
slender, glabrous, somewhat decumbent: leaves narrow, linear, 
very acute, 1-2 inches long, a line or less in breadth, plibtone 
except the ciliate margins of the sheaths: flowers small, about 
3 lines in diameter, some solitary, but for the most part um- 
bellately grouped at the ends of terminal peduncles (1-2 inches in 
length): the subtending bracts much shorter than the pedicels: 
sepals ovate, acute: petals roseate: stamens very different, the 
longer ones with smooth bent filaments, the broadly dilated some- 
what horseshoe-shaped connective bearing the small orange-colo 
anther cells in a transverse position; in the shorter stamens the 
anthers larger, pinkish, the connective much less developed, and the 
cells parallel or nearly so: seeds triangular, brown, and somewhat 
radially rugose. — Thin soil of limestone ledges, Las Canoas, San 
Luis Potosi, August, 1891 (n. 3902). 
