388 PROCEEDINGS OF THE AMERICAN ACADEMY, 
I have preferred, at least for the present, to regard plants which 
differ only in comparatively superficial foliar and habital characters as 
varieties of a single species, rather than specifically distinct. I have, 
_ however, made an exception in the group of forms closely related to 
Li. reflexa. Here, because of imperfect material of H. reflera and 
£. paniculata and of certain puzzling specimens from Yucatan, I have 
not been able to arrive at a wholly clear conception of the relationships 
of the different forms ; and I have allowed described species to stand 
as such, rather than make new combinations which later might have to 
be withdrawn. 
For the loan of specimens, and for other kindly assistance im the 
preparation of this paper, I am indebted to Captain John Donnell 
Smith, to Mr. Brandegee of the University of California, Dr. Rose of 
the National Herbarium, and Dr. Greenman of the Field Museum. 
All specimens cited are in the Gray Herbarium, unless otherwise 
specified. 
ECHEANDIA Ort. Perianth rotate, spreading or reflexed in flower, 
after anthesis the withered segments cohering above the ovary and 
persistent until pushed off by the expanding capsule; segments 6, 
istinet, three-nerved, about equal in length, the inner often broader. 
Stamens 6, hypogynous, shorter than the perianth ; filaments filiform 
or clavate, smooth or more or less papillose- or crispate-roughened ; 
anthers linear, hastate at base, the filament attached in the sinus, 
usually equalling or longer than the filaments, connate in a eylindr 
tube which surrounds the style, introrse. Ovary sessile, three-lobed ; 
Style filiform, a little longer than the tube of anthers; stigma small, 
capitate. Capsule ovoid or oblong, triangular, loculicidal. Roca a 
numerous, angulate-compressed, black, minutely papillose. — 
fibrous, clustered, often thickened or fusiform. Leaves basal or rarely : 
the lower part of the stem leafy. Stem scapiform, bracted, simple ot 
branched above, the branches virgate. Flowers yellow or white, a 
usually slender jointed pedicels in clusters of 1-4 on the stem and its 
branches, in the axils of chartaceous bracts, each pedicel subtended by De 
a similar smaller bractlet ; the clusters in virgate racemes. 
a. Filaments smooth; leaves strictly basal, not sheathing the stem, b. 
b. Stem scabrous, 1-4-bracted . . ... 4... + LEP 
b. Stem smooth, 6-9-bracted, c -jolia. 
c. Leaves spreading, faleate, 15cm. orlesslong . . 2-42: brevifo 
c. Leaves erect, narrowed at base, more than 15 cm. long, de 
d. Leaves broad,2cemi.ormore ...... ++ % B. — 
d. ves narrow, not over 1 em. wide. 3. E. nodosa, var. la eh 
parviflora. : 
fae eae te ¥ 
