BOTANICAL OBSERVATIONS. 271 



The latter is a diandrous plant, has stylum gluma 

 pauco longiorem IS setas receptaculi decern ; Schoenus 

 fuscus, on the contrary, is a triandrous plant, 

 stylo glumd duplo longiore iff setis receptaculi tribus, 

 semine multo longioribus, &c. 



Cyperus palustris hirsutus minor, paniadis albis 

 Moris, hist. Vol. 3. S. 8. t. 9. f. 39. is Schoenus 

 albus, though Linnaeus refers to this figure at his 

 Juncus niveus. 



Schoenus Mariscus L. cannot belong to the other 

 Linnean species of Schoenus, or to the Marisci of 

 Halle r, being diandrous, and its fruit a nut, 

 containing a four-winged kernel. 



Eriophorum polystachium is sometimes a poly- 

 gamous plant. 



Cornucopias is not a good generic name, and 

 Cornucopia is worse. 



Saccharum arundinaceum Retz. appears not to 

 have trivalved corolla?, but two-flowered glumes, 

 as feveral of the polygamous grasses have. The 

 outer floret (flosculus) is generally one-valved. 



Phalaris is a compound genus, some species 



