388 NasH : ENUMERATION OF THE 
34. PHRAGMITES Trin. Fund. Agrost. 134. 1820 
1. PHRAGMITES OCCIDENTALIS (Sieb.) Trin.; Steud. Nomen. Ed. 
2 2s 324 TSA. 
Arundo occidentalis Sieb.; Schult. Mant. 2: 289. 1824. 
Near Guanica, Heller 6289. This specimen is doubtfully re- 
ferred here, its immaturity preventing a more definite determination. 
It was distributed as Arundo Donax ; it hardly appears to be that 
plant, however. It may only be a form of the world-wide P. 
_ Phragmites. Mature flowering specimens of this are greatly desired. 
35. ERAGROSTIS Beauv. Agrost. 70, p/. rg, f. rz. 1812 
Flowers perfect : stems not rooting at the lower nodes. 
Palet long-ciliate on the margins: panicle narrow and spike-like. 
1. &. ciliaris. 
Palet not long-ciliate: panicle loose and open. 
Annual: leaf-blades less than 1 dm. long. 2.) Bs Purshii. 
Perennial : leaf-blades more than 1 dm. long. 3. £. Elliott. 
Flowers dioecious: stems creeping. 4.. E. hypnoides. 
1. ERAGROSTIS CILIARIS (L.) Link, Hort. Berol. 1: 192. 1827. 
Poa ciliaris L. Syst. Ed. 10, 875. 17509. 
In waste and cultivated soil, common. Bayamon, Heller 101; 
Santurce, Heller 156 and 6404; Cabo Rojo, Sintenis 838; Baya- 
mon, Underwood and Griggs 895 ; Ponce, Heller 6218. 
2. ERaGRostis Pursuu Schrad; Shlecht. Linnaea,12: 451. 1838. 
Rio Piedras, Heller 197; between Aibonito and Cayey, Hel- 
ler 551; Montellano, Goll 473; Adjuntas road,-near Ponce, 
Heller 6198. These specimens are doubtfully referred here. 
3. Eracrostis Extiorru S. Wats. Proc. Am. Acad. 25: 140: 
1890. 
Poa nitida Ell. Bot. S. C. & Ga. 1: 162. 1817. Not Lam. 
1791. 
Eragrostis nitida Chapm. Fl. S. U. S. 564. 1860. 
Moist sandy soil, Santurce, Heller 584. 
4. ERAGROSTIS HYPNOIDES (Lam.) B.S.P. Prel. Cat. N. Y. ©9- 
1888. 
Poa hypnoides Lam. Il. 185. 1791. 
Roadsides, Rio Piedras, Heller, 649; Bayamon, Sintenis 1225- 
