(280) 



ticnlate; leaves verticillate, sessile, diclioto- 

 mous. 



Affinities doubtful. Further investigations 

 even may remove them altogether from the 

 Angiosperms and place tliem near the Gneta- 

 cece, together with the Fodostcmonece. 



1. Ceratophyllum L- 

 Only genus of tlie family. 

 1. C. DEMERSUM L. Common aquatic. 



DiTisiON 2. MONO COT YLEDONES. 

 Series 1. COROLLIFLOR.E. 



Perigonium 2x3 parted. Ovary 3 carpidia, 

 syncarpous in different degrees. 



Order 1. GYNANDR^. 

 Family 1. ORCHIDE^. 

 Placentae 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. — It Cau- 

 lescent, flowers in a loose, few-flowered raceme. 

 1. E, gigantea Dougl. Sepals brownish- 

 green, labellum white, dotted. — San Francisco 

 [extinctj. Camp Taylor. Summer. 



