TRIANDRIA. DIGTNIA. 47 



which Invests the base of the corolla; true pappus about 

 half the length of the corolla; seed villous, with a hairy tuft 

 at its extremity; nectary (perisporium) bifid, acute. What- 

 ever this plant and the Amndo colorata may be consider- 

 ed, they are proximate species. In the latter there are 

 2 stipitate pappose tufts, in the present species but 1; the 

 resemblance of these to that species of pubescence which 

 invests ihe base of the corolla is so exact, that I can scarce- 

 ly think it improper to consider them as any thing else 

 than neutral abortions, and if ever these imperfect rudi- 

 ments should even produce an empty or staminiferous 

 flower, they might then be almost considered as species 

 of Holcus. 



4. confiniSf {Amndo conjinis. Willd.) To this genus 

 also appertains the Arundo epigejos, the A. CalamagrostiSf 

 and the A. stncta of Europe, probably also the A. conspicua 

 of New Zealand. 



71. ANTHOXANTHUM. i. (Sweet-scented, 

 Vernal Grass.) 



Calix 2-valved, 1 -flowered. Corolla 2-valved, 

 valves unequal, acuminate, awned from near 

 the base. Stamina 2. 



Flowers spiked, bracteolate, spike terminal, somewhat 

 lobed, glumes of the calix very unequal, sheathing and 

 scariose. Flower glumes nriuch smaller than the calix, 

 obtuse, nearly equal, each awned nearly from the base, 

 one of the awns longer and geniculate. Stamens much 

 exserted, bifid at either extremity. 



Species. 1. A. odoratum. (naturalized. — From Europe.) 

 Of this genus there are only 4 species, 2 of which are na- 

 tives of India, and the 3d was discovered by Forster in 

 New Zealand, but appears to belong to some other ge» 

 nus. 



72. AULAXIA. Aulaxanthus. Elliott. 

 Calix 2-valved, 1 -flowered, with the rudi- 

 ment of a second; valves equal, furrowed, the 

 furrows villous. Corolla 2-valved, valves near- 

 ly equal. 



Flowers disposed in a narrow appressed panicle, re- 

 sembling a raceme; calix and corolla nearly equal. Seed 

 roundish obovate. Stigmas plumose. 



Species. 1. A- ciUata. El. {Fhalaris villosn? Mich.). 2. 



