212 Engelmann and Gray, 



13. Krameria lanceolata, Torr. in Ann. Lye. New 

 York, II. p. 168. The root of Krameria lanceolata is ligne- 

 ous, 2 to 3 lines thick, and very long, of a dark red color, 

 and has the same chemical and medicinal properties as the 

 South American Ratanha, (root of K. triandra, R. fy P.) 

 As the plant appears to be common in some parts of Texas, 

 it might become valuable for collection and export. 1 



14. Drosera brevifolia, Pursh. Galveston Island. April. 



15. Helianthemum capitatum, Nutt. (ex Torr. fy Gr. Fl. 

 I. p. 151.) H. polifolium, Torr. fy Gr. I. c, which name is 

 preoccupied in the genus. The clusters are seldom capitate. 

 May. 



16. Lechea Drummondii, Torr. &/• Gr. Fl. I. p. 154. 

 With the preceding. 



17. Hypericum gymnanthum (n. sp.) : annuum, caule sim- 

 plici vel superne ramoso erecto quadrangulari ; foliis e basi 

 cordata ovatis ovati-oblongisve amplexicaulibus 5-7-nerviis 

 pellucido-punctatis ; cyma dichotoma pedunculata strictius- 

 cula laxiflora aphylla, nempe foliis floralibus in bracteis parvis 

 lanceolato-subulatis diminutis ; floribus pedicellatis ; sepalis 

 lanceolatis acutis petala superantibus ; staminibus 10-12 ; 



1 Professor A. Braun, after examining the flowers of species of this genus, has 

 suggested that the natural affinity of Krameria is with Leguminosce, rather than 

 with Polygalacece. And, indeed, at least in this species, the two lateral glandu- 

 lous petals cover in aestivation the stamens ; they cannot therefore belong to an 

 interior circle, as Bentham supposes. The ovary is one-carpellary (against the 

 type of Polygalacece) and irregularly one-sided, like the ovary of Leguminosce; 

 it is imperfectly bilocular, hy the inflection of the placenta, as in some Leguminosce ; 

 but in both cases are the cells always side by side ; on the contrary, in Polygalacece 

 one is before the other. Krameria may, then, be considered a pentandrous Legu- 

 minosa, where one or two stamina are abortive. In K. lanceolata, it is the lowest 

 stamen, opposite the three connected petals, which is wanting; but, in some flowers, 

 a sterile filament occupies this place; it corresponds with the free 10th stamen of 

 most papilionaceous flowers, as the four others, which are united in K. lanceolata, 

 are analogous to the tube of nine connected filaments. The lateral sessile petals 

 correspond with the carina, and the three others, whose claws are connected, with 

 the alaj and carina ; the five sepals alternate with them, as the stamens alternate 

 with the petals. The fruit resembles somewhat the indehiscent spiny legume of an 

 Onobrychis; and, in all the specimens we have examined, it is one-seeded when 

 ripe. Engel. MSS. 



