Lepidagathis. | XCVIII. ACANTHACEE (CLARKE). 121 
Species 80, in the hotter parts of the world, whereof only 8 in America. 
This genus is by Bentham (Gen. Pl. ii. 1068), by Lindau (Engl. & Prantl, l.c. 312), 
and by other authors, specially diagnosed by having all the anthers 2-celled, by which 
it is distinguished from Neuracanthus and other closely allied genera. I find the 
posticous stamens throughout the sect. Newracanthopsis (the species of which are placed 
in Lepidagathis by Bentham and Lindau) to have 1-celled anthers, Lepidagathis is 
nevertheless well separated naturally from Newracanthus by its 2-lipped corolla, and 
is easily separated in dried specimens by its 5-sepalous calyx. 
* Eu-LEPIDAGATHIS,— Posticous stamens with 2-celled anthers, 
Inflorescence terminal. 
Leaves elliptic-lanceolate or ovate-lanceolate 
Leaves narrowly linear. . . . . 
Inflorescence of dense heads near the crown of the root; 
the elongated leafy branches without flowers, or 
rarely with a small axillary head, 
Leaves hairy above and on the nerves beneath, 2 by 
gin. . . . . . . . 3 
Leaves when mature very slightly hairy. 
Leaves 4 by 3-3 in. 
1, L. scariosa. 
2, L. angustifolia. 
, L. radicalis. 
. . . . . 4 D, Schweinfurthi. 
Leaves 1} by 4 in., shining, rather wider above the 
middle . . . . . 5, L. ampliata, 
Leaves glabrous, at least when mature, 
Leaves 2 by 2 in. . : . . . . 6. L. Fischeri. 
Leaves 7 by 2 in, . . 7, L. anobrya, 
Inflorescence of several axillary heads towards the 
middle or upper part of the stems, (Inflorescences 
near the base have been seen in one example of 
L. myrtifolia and in one example of L. mollis.) 
Inflorescence in short globose or ovoid heads, 
Mature leaves glabrate (in L. lanatoglabra the 
uppermost leaves very hairy: see L. lanato- 
glabra, var.). oo. 
Leaves 1 by 3} in. ; branches flexuous . . 8. L. myrtifolia. 
Leaves linear, 
Sepals without a fringe of white hairs on the 
shoulders. 
Leaves hardly 2 in. long. 
Sepals 4 in. long, softly white-hairy at 
the tip a, _ 9. L, sparsiceps. 
Sepals 4 in. long, bristle-tipped =. . 10, LZ. lanatoglabra. 
Sepals 1 in, long. . . , . 11. L. longisepala. 
Leaves 3 in. long; inflorescence nearly 
glabrous . . . 12, L. perglabra. 
Sepals with a fringe of white hairs on the ; 
shoulders. . . . . . 13, L. fimbriata, 
Mature leaves hairy at least beneath, 
Heads scattered often in the lower part of the 
stems . . . . . . . 14. L. mollis. 
Heads in opposite axils. . . . . 15, ZL. diversa. 
Heads scattered, mostly in the upper axils, shaggy 
white . . . . . 16. ZL. andersonivana, 
Inflorescence of oblong erect dense one-sided spikes. 
loral leaves with recurved tails; sepals not 
tailed . . . . 17. L. heudelotiana. 
