PlantfE Lindheimeriana. 257 



retuso, marginibus in omnibus fere integerrimis : achenia sub- 

 globosa, laevia. 



287. B. scutellarioides, 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. Physostegia intermedia = Dracocephalum interme- 

 dium, Nutt. in Trans. Amer. Phil. Soc. I. 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. I. 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. Dipteracanthus (^ Meiophanes, corolla parva cadu- 

 ca, limbo vix expansa) micranthus (n. sp.) : subglaber, caule 

 crecto 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 scquantibus. 



