( 280 ) 
ticulate; leaves verticillate, sessile, dichoto- 
mous. 
Affinities doubtful. Further investigations 
even may remove them altogether from the 
Angiosperms and place them near the Gneta- 
cee, together with the Podostemonec. 
1. Ceratophyllum L. 
Only genus of the family. 
1. C. pEmEersum L. Common aquatic. 
Division 2. MONOCOTYLEDONES. 
Srenizs 1. COROLLIFLORA. 
Perigonium 2X3 parted. Ovary 8 carpidia, 
syncarpous in different degrees. 
Orprr 1. GYNANDRA. 
Family 1. ORCHIDEA. 
Placentz parietal. 
1. Epipactis Haller. 
Anther 1, persistent, not connate with the 
column; pollinia 2, attached to the common 
gland. Perigonium spreading; labellum geni- 
culate, inferior part concave. Ovary contorted 
only at base; column short, terete.—2f Cau- 
lescent, flowers in a loose, few-flowered raceme. 
1. EH, Gieganrza Dougl. Sepals brownish- 
green, labellum white, dotted.—San Francisco 
fextinct]. Camp Taylor. Summer. 
