Plantce Lindheimeriana. 217 



lelis semine multo minoribus : cset. F. radiatse sed fructu mi- 

 nore. — Thickets in light soil, near San Antonio, New 

 Braunfels, &c. March. This, Dr. Engelmann, probably 

 with good reason, considers as distinct from the F. radiata 

 with glabrous fruit (the form that alone occurs around St. 

 Louis.) " The fruit is not only much smaller and more slen- 

 der than that of F. radiata, but the proportion of the empty 

 cells is different ; these being much smaller than the seed ; 

 while in the former they are about equal, and in F. carinata 

 (which has a different habit) larger. Cauline leaves often 

 deeply dentate at the base, or almost pinnatifid, but some- 

 times entire." Engelm. 1 



COMPOSITE. 



408. Vernonia Lindheimeri : perennis, bipedalis ; foliis 

 anguste linearibus confertis sessilibus uninerviis margine re- 

 volutis supra glabris punctatis subtus cauleque simplici seri- 

 ceo-tomentosis ; capitulis corymbosis breviter pedunculatis 

 30-40-floris ; squamis involucri cano-tomentosi pappo rubi- 

 ginoso brevioribus conformibus appressis oblongis xobtusis 

 exappendiculatis ; acheniis glabris 10-costatis glandulosis ; 

 pappo exteriori multisquamellato. Gray &r Engelm. in Pro- 

 ceed. Amer. Acad. 1. p. 46. — Rocky hill sides, and high 

 rocky plains, near New Braunfels, &c. July, August. Also 

 near Seguin, &c. Mr. Wright. A very well-marked and hand- 

 some species. In cultivation in the Cambridge Botanic Gar- 

 den, it does not blossom until near the end of September. 



1 From the collection of 1S49, Dr. Engelmann has communicated the characters 

 of another species, viz. 



Fedia amarella (Lindh. Mss.): " glaberrima, erecta, versus apicem dicho- 

 tomo-cymosa; foliis inferioribus spathulatis basi longe attenuatis, superioribus ob- 

 longo-linearibus sessilibus vel basi subcordatis, omnibus integris obtusis ; fructibus 

 minimis subgloboso-ovatis obtuse auriculatis hispidis, loculis sterilibus fertili sub- 

 globoso multo angustioribus brevioribusque pene obliteratis. — Comanche Spring ; 

 flowering in May. — Plant 8 to 12 inches high, in habit similar to F. radiata and 

 F. ste?wcarpa ; but the leaves are entire in all the specimens ; and the fresh herb has 

 a bitter taste, which the other species have not. The fruit is much smaller than 

 in any other species known to me ; the sterile cells many times smaller than the 

 seed, their cavity almost obliterated." Engelm. 



