ARUNDO» 
187 
XXXVIII. ARUNDO. 
Cah IS- valvis» Flosculi congesti lana cinctL 
1. ARUNDO CINNOIDES. 
Culmo tereti glabro erecto simplici 3- pedali. 
Foliis lanceolatis acuminatis nervosis, supra pilo- 
sis, subtus glabris. 
Ligula 
Vaginis nervosis retrorsum pubescentibus. 
Panicula erecta contracta viridi, ramis scabris ter- 
nis. 
Cal. gluma 2 - valvis 1 -florus, valvulis subsequalibus 
acuminatis apice purpurascentibus carinatis, 
carina scabra. 
Cor, calice minor 2- valvis, valvulis aequalibus acu- 
tis, apice purpurascentibus, carinatis, basi la~ 
nosis pappo albo simplici, dorso subaristata, 
arista erecta valva longiore, valvula aristata 
apice bifida. 
Stam. 3. 
Pist. 2. 
Semen fuscum jpubescms . 
Radix 
Habitat locis siccis et sphagnosis, floret Augusto, 
Penns. Massachuss. 
