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CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



description of the species is short: "culmo simplici, erectiusculo, monostachio: spica 

 terminali, oblonga, glaberrima." This was written in 1805. In his later work, a 

 Lagasca added to this the two facts that the habitat of the plant is Peru and that it is 

 an annual. These facts in connection with the above description satisfy me that 



Fig. 30. — Bouteloua stoloniftra. a, Spikelet; b, c, lemma and palet of first floret; d, e, 

 rudimentary lemma and palet of second floret; /, g, rudimentary third and fourth 

 florets, a, Scale 7.5; b-g, scale 10. From type specimen. 



Lagasca had the South American form of what he described in the next paragraph as 

 B. prostrate. Philippi gave two names to this species. His B. brachyathera is 

 a single-spiked immature plant, but unmistakably this species. The type of his 

 B. rdhmeri is fragmentary and immature, having 2 or 3 spikes aggregated at the apex 



<* Gen. & Sp. Nov. 5. 1816. 



