574 
evil. GRAMINEjE. 
[Knappia. 
** Spikelets with one per fect floret inserted on different sides of 
the compressed rachis, unilateral, forming a simple spike-like 
raceme. Styles very short. Stigmas elongate filiform. 
41. Knappia Smith. Knappia. (Tab. IX. f. 39.) 
Spikelets very shortly stalked, solitary, arranged on two sides 
of the simple rachis and forming a simple unilateral spike-like 
raceme , 1 flowered, awnless. Glumes 2, opposite, truncate, nearly 
equal, rather longer than the floret, membranous, 1 -nerved. 
Outer glumella hairy, membranous, deeply toothed at the end; 
inner narrower, sometimes wanting. Styles distinct, very short. 
Stigmas filiform. — Named in honour of Mr. Knapp , an English 
botanist, author of a work on British grasses. 
1. Iv. agrostidea Sm. ( early K.) : E. E. t. 1127 : Pam. Gr. 
t. 73. K. verna Trin. Agrostis minima L. Chamagrostis 
Borkh. Sturmia Hoppe. >3. verna Pers. Mibora Adans. 
Sandy pastures by the sea, rare. Essex, near the mouth of the 
Thames. Wales, and S. W. coast of Anglesea, frequent. Gullane 
Links, Haddington : introduced. Jersey. ©. 3, 4. — A beautiful 
and minute grass, of which only a solitary species is known. Root 
fibrous. Stems several from the same root. Leaves short, linear, 
rough, equalling in length their white inflated sheaths. Glumes 
purplish. Glumellas sometimes 2, white, delicate, the outer one much 
the larger and embracing the inner, which last is often wanting. 
*** Spikelets (with one perfect floret) arranged only on one side 
of the p>artial rachis and forming a racemose or digitate 
compound spike or raceme. Styles elongate. (Tab. IX. 
f. 42. g.) (Gen. 42 — 44.) 
42. Spartina Schreh. Cord-grass. (Tab. VIII. f. 38.) 
Spike compound. Partial spikes erect, racemose. Spikelets 
sessile, awnless, arranged alternately in two rows on one side 
of the partial rachis , laterally compressed, with one fertile and 
scarcely any rudiments of a neuter floret. Glumes 2, unequal, 
lanceolate, compressed. Glumellas 2, compressed, lanceolate, 
acuminate. Styles elongate, united half-way up. Stigmas 
elongate. — Ligules very short. — Name derived from its simi- 
larity to the Lygeum Spartum, or Bastard mat-weed, and that 
from airaprov , applied to plants of which the bark, branches, 
and leaves are tough, and made into cords, ropes, &c. 
1. S. stricta Both (twin-spiked C.) ; partial spikes 2 — 3, larger 
glume and outer glumella 1 -nerved hairy, partial rachis scarcely 
produced beyond the terminal spikelet, leaves shorter than the 
spikes tapering at the base articulated upon the sheath lower 
ones deciduous. Parn, Gr. t. 74. Dactylis Soland. : E. B. 
t. 380. 
