﻿PLANTAE LINDHEIMERIANAE. 



173 



854. Amblyolepis setigera DC. L. 302. New Braunfels. 



May 1850. 



"Muskit prairies, 12 mi. S. W. of New Braunfels."— PI. Wright. 

 1:121. 



855. Ambrosia aptera DC. L. 109. Comanche Spring. 



Aug. 1849. (428). 



856. A. APTERA DC. L. 533? New Braunfels. July 1851? 



857. A. APTERA DC. L. 484. (New Braunfels). Nov. 1850. 



858. A. ARTEMisiAEFOLiA L. var. PANicuLATA (Michx.). L. 



171. Comanche Spring. Oct. 1849. A. paniculata 

 Michx. Fl. 2 : 183. 



A very slender, smoothish, widely branching form with leaves 

 less divided than in A. artemisiaefolia L., the segments oblong- 

 lanceolate to linear: sterile racemes loosely flowered and heads 

 small (2 mm.) : fruit small, with inconspicuous lateral tubercles. 

 A well-marked variety approaching A. glandulosa Scheele. Linn. 

 22: 157. 



859. A. ARTEMISIAEFOLIA L. var. PANICULATA (Michx.) L. 



502. (New Braunfels). Sept. 1850. 



860. A. PSiLosTACHYA DC. L. 145. San Antonio. Sept. 



1849. 



An unusually large coarse form, 6-9 dm. high, with strigose 

 pubescent leaves and segments relatively few and long lanceo- 

 late-acuminate ; sterile racemes elongated and heads about 3 mm. 

 diameter. 



861. A. PSILOSTACHYA DC. var. Lindheimeriana (Scheele). 



L. 390. New Braunfels. Sept. 1850. (429). A. 

 Lindheimeriana Scheele. Linn. 22 : 156. A. coro- 

 nojnfolia T. & G. var. Gray, PI. Lind. 2:226. 



Leaves in these specimens vary considerably in pubescence and 

 dissection. A well-marked variety. 



862. Amphiachyris dracunculoides Nutt. L. 474. (New 



Braunfels). Oct. 1850. (422). 



863. Aphanostephus ramosissimus DC. L. 233. (New 



Braunfels). July 1850. (414). 



864. A. SKiRROBASis Trelease. L. 254. (New Braunfels). 



May 1850. (111). 



865. A. SKIRROBASIS Trelease. L. 549. (New Braunfels). 



May 1851. 



