Calix. Corolla, 



CL. III. TRIANDRIA, 



MONOGYNIA. 



I valv. 

 imbric' 



2 valv. 

 2 flor. 

 involu^ 

 cr. 



i> 2 



fvalv 



(scirpus) 



4^ trichodes, 



5. in'termedius % 



6. palustris, % 



7. planifolius, % 



8. lacustris, % 



9. acutus, 

 maculatus, 



hair-like, 

 middle, 

 marsh, 

 flat-leaved, 

 bullrush, 



^ ^ spotted, 



10. triqueter. % three-square, 



11. monanthos, 



12. debilis, 

 lupulinus 



13. puberulusMx.} 



ferrugi- L hairy, 

 neus L. J 



^ hop-li 



like, 



0 46. 



14. spadiceus, 



15. capiliaris L. 



16. autumnalis, L. 



17. castaneus, 



18. subsquarro- 



sus, 



19. echinatus, ^ 

 10, luzulae, 



21. retrofractus 2{ 

 32. cyperiformis, 

 (lupulinus 

 Sprengel)^ 



23. macrostachyos 



24. brunncus, % 



25. atrovirens, 



26. lineatus, 



27. pendulus, 



eriophorum, 

 1. polystachium, 



I 



brown, 

 dwarf, 

 autumnal, 

 chesnut-coloured, 

 scurfy, three- 

 headed, 

 echinated, 



backward-bent, 



cyperus-like, 



Habitat. Fructus^ cS 

 Temfius JlorendL 



Penns. fl. Jun. Vir. 

 Penns. fl. Aug. 

 Penns, fl. Maio. 

 Penns. fl. Maio. 

 Penns. fl. Jun. Car. 



Penns. fl. Jun. 



5 Pens.fl. Jul.Car.Vire. 

 I N. Ebor. 



Delaware. 



Penns. fl. Aug. 



Penns. Car. Georg. 



Penns. Car. 

 Pens. fl. Jul. Sept. 

 Pens.fl. Jul. Sept. Car, 

 Georg. Car. 



^ Penns. fl. Jul. Georg. 



Penns. fl. Jul. Car. 



Penn. fl. Jul. Cherok 



Penns. fl. Jul. Georg 

 Car. 



sea, large, spiked, \ Car ' 

 brown, panicled, Penns. fl. Sept. Del. 



black-green, 

 panicled, 

 streaked, 

 pendulous, 



COTTON GRASS, 



1 



2. Virginicum, % 



3. cyperinum % 

 (scirpus thy] 

 siflorus)W 



4. Hudsonianum, 



5. angustifolium ; 



hyr- J. 

 f ild. J 



common, man) 



headed, 

 Virginian, 



1 

 i 



Hudson's Bay, 

 narrow-leaved, 



47. cenchrus, 



HEDGE-HOG GRASS, 



1. echinatus, © rough-seeded, ^ 



2. tribuloides, 0 woolly, spiked, 5 



Penn. fl. Jun. Del 

 Car. 



Penns. fl. Jun. 

 semen 1, villis in- 

 structum. 



Penns. fl. Jun. 



Pen. fl. Jul. Car. Virg. 



Penns. fl. Aug. Virg. 

 Georg. 



Can. 



Del. N. Ebor. 



sem. 1, subrotundum 



Pens. fl. Aug. N.Cses 



Georg. 

 N. Caes. Virg. Carol 

 N. Ebor, 



