Rydberg : Notes on Philotria Raf. 463 



Hatchery, Wyo., 1898, Aven Nelson 5374, pistillate; Lee's Lake, 

 Colo., 1897, C. S. Crandall 2423, staminate ; 1896, 242 1, fruit; 

 Rio Grande, Alamosa, Colo., 1896, C. L. Shear 3746 , staminate 

 and pistillate; Wadsworth, Nev., 1887, Tracy & Evans 473, 



pistillate. 



Apalanthe Schweinitzii Planch. Ann. Sci. Nat. Bot. III. 11 : 76. 



1849. 



Planchon distinguishes the genus Apalanthe from Anacharis 

 by the hermaphrodite instead of dioecious flowers. Of how little 

 value these characters are as generic distinctions may easily be 

 settled by field work. From the description, this must be iden- 

 tical with Scrpicula occidentalis Pursh. Of course, it is also Elodea 

 Sckmnitzii Casp. Jahrb. Wiss. Bot. I : 468. 1858. 



Elodea latifolia Casp.; Jahrb. Wiss. Bot. 1: 467. 1858. 



This was described from sterile material collected by Schweinitz. 

 ft was characterized by broad ovate-oblong leaves and rounded 



toothed stipules. Why is this not the typical Elodea canadensis 

 Michx.? 



Nuttallii 



j 



1858. 



Nuttallii 

 Mo 



Clted Engelmann for the main part of the description of the flowers. 

 1 ^ink, however, that Engelmann's plant is distinct from both the 

 P'ant described by Nuttall and the plant collected by Torrey in 



^e\V Wco,, ...U!_ 1 • .t , •. » . TM 1 T4- .'o ^1^ce1l7 



It is closely 



plated to Philotria angustifolia (Muhl.) Britton, differing mostly in 



size of the plant and the flowers. The spathe of the stami- 



nate P lant is subglobose, 2 mm. long ; sepals ovate ; petals nar- 



rowly ovate, 1.5 mm . long; stamens 9, anthers scarcely I mm. 



0n S; spathe of the pistillate plant linear-tubular, 1 cm. long, 0.5 



* m - thick ; tube of the flower very slender, 3-6 cm. long ; sepals 



* nd Petals ovate, 1-1.5 mm . long ; stigmas 3, club-shaped, bifid ; 



^ eav es linear, acute, 5-8 mm. long, 1 mm. wide. This species is 



Resented by the following specimens: St. Louis, Mo., 1845. 



W»mnn, pistillate and staminate plants, 3 sheets ; Banks of 



' ,ss,s sippi, Oquawka, III., //. .V. Patterson, pistillate; Lexing- 



