Plante Lindheimeriane. 49 
retuso, marginibus in omnibus fere integerrimis: achenia sub- 
globosa, leevia. 
28D B. scure.uarioiwes, n. sp.—In heavy black soil on 
the prairies near Cat Spring, west of the Brazos: April, May. 
The plant was also collected by Drummond, and specimens 
were distributed, under No. 274, of the Third Collection, 
mixed with B. truncata, which it greatly resembles in habit 
and foliage. ‘The stem is glabrous, however, though the in- 
florescence, as well as the calyx, is minutely pubescent. The 
flowers are scarcely half the size of the preceding: the calyx 
is more deeply bilabiate, and the lobes, except the middle one 
of the upper lip, pointed with a rather conspicuous cusp: in 
fruit the upper lobes are somewhat curved backwards, while 
the narrow lower lip is incurved, so as nearly to close the ori- 
fice. Corolla flesh-color : anthers purplish. 
288. PuysosreGia INTERMEDIA = Dracocephalum interme- 
dium, Nutt. in Trans. Amer. Phil. Soc. l. c. Wet prairies 
west of San Felipe, growing in patches, —a smaller plant than 
P. Virginiana, with a much more slender spike. The cauline 
leaves, especially the upper ones, are broadest and cordate at 
the base, and serrate throughout. Our plant accords with 
No. 275 of Drummond’s Third Texan Collection. No. 274 
is a form with acute and more entire leaves, more nearly that 
described by Nuttall. It is difficult to distinguish the species 
sufficiently from some forms of P. Virginiana. 
289. VERBENA BIPINNATIFIDA = Glandularia bipinnatifida, 
Nutt. in Trans. Amer. Phil. Soc. l. c. Rich prairies, &c. 
March, April. A plant with more prostrate and radicant 
sterile stems, more dissected leaves, denser spikes, smaller 
flowers, shorter calyx, and also more hirsute than V. Aubletia. 
290. Dipreracanruus ($ Metopuanes, corolla parva cadu- 
ca, limbo vix expansa) MicranrHus (n. sp.) : subglaber, caule 
erecto ramoso ; foliis lanceolato-oblongis subintegerrimis utrin- 
que acutis in petiolum brevem attenuatis, junioribus ciliatis ; 
cymulis paucifloris subsessilibus axillaribus bracteis ovalibus 
brevioribus ; calycis laciniis subulato-lanceolatis piloso-ciliatis 
corollam inconspicuam capsulamque 8-spermam <equantibus, 
* 
