GENUS 5. 



WATER PLANTAIN FAMILY. 



99 



Filaments much longer than the anthers ; achene with 5-7 tuberculate or prominently 

 toothed crests. 17. S. lorata. 



i. Sagittaria longirostra (Micheli) J. 



G. Smith. Long-beaked Arrow-head. 



Fig. 231. 



Sagittaria sagittaefolia var. longirostra Micheli 



in DC. Monog. Phan. 3 : 69. 1881. 

 Sagittaria longirostra J. G. Smith, Mem. Torr. 



Club, 5: 26. 1894. 



Monoecious, glabrous, scapes erect, rather 

 stout, i-3 tall. Leaves. hastate or sagittate, 

 4'-i2' long, abruptly acute at the apex, the 

 basal lobes ovate or ovate-lanceolate or linear, 

 acute, one-third to one-half the length of the 

 blade ; scape usually longer than the leaves, 

 6-angjed below ; bracts triangular-lanceolate, 

 acuminate, 7"-is" long, longer than the fertile 

 pedicels; petals 8"- 14" long; filaments gla- 

 brous; styles curved, twice as long as the 

 ovaries ; achene obovate, about 2" long, winged 

 on both margins, the ventral margin entire or 

 undulate, the dorsal eroded, its sides with a 

 short crest, its beak stout, erect or recurved. 



In swamps and along ponds, New Jersey and 

 Pennsylvania to Florida and Alabama. July-Sept 



2. Sagittaria Engelmanniana J. G. Smith. En- 

 gelmann's Arrow-head. Fig. 232. 



Saggittaria variabilis var. ( ?) gracilis S. Wats, in A. Gray, 



Man. Ed. 6, 555. 1889. Not Engelm. 



Sas'ttaria Engelmanniana J. G. Smith, Mem. Torr. Club, 5: 

 25- 1894- 



Monoecious, glabrous, scape erect or ascending, slender, 

 8'-2o' high. Leaves narrow, il'-S' long, i"~4" wide, acute 

 or obtuse at the apex, the basal lobes narrowly linear, 

 acuminate, one-third to one-half the length of the blade; 

 scape striate, about as long as the leaves; bracts lanceo- 

 late, acute, shorter than the slender fertile pedicels, 4 A '-6" 

 long ; flowers 7"-! 2" broad ; filaments glabrous ; style about 

 twice as long as the ovary ; achene cuneate, 2" long, winged 

 on both margins and with 1-3 lateral wing-like crests on 

 each face, the beak stout, erect, about \" long. 



In shallow water, Massachusetts, Connecticut and Rhode 

 Island. Arrow-leaf. Aug.-Sept. 



3. Sagittaria cuneata Sheldon. Arum-leaved 

 Arrow-head. Fig. 233. 



Sagittaria cuneata Sheldon, Bull. Torrey Club 20 : 283. 



1893- 

 Sagittaria arifolia Nutt. ; J. G. Smith, Rep. Mo. Bot. Card. 



6: 32. 1894. 

 Sagittaria arifolia stricta J. G. Smith, Rep. Mo. Bot. Card. 



6: 34. 1894. 



Glabrous or nearly so, terrestrial or submerged, scape 

 weak, ascending or floating, -2 long. Leaves sagit- 

 tate, linear-lanceolate to ovate, il'-oT long, acute or 

 acuminate, long-petioled ; phyllodia, when present, of 

 two kinds, the one petiole-like and about as long as the 

 leaves, the other lanceolate and clustered at the base of 

 the plant ; bracts lanceolate or linear-lanceolate, or 

 rarely ovate-lanceolate ; flowers 6"-i2" broad ; achene 

 cuneate-obovate, i"-ii" long, the beak minute, erect 

 over the ventral wing. 



In mud or water, Nova Scotia and Maine to Quebec, 

 British Columbia, Connecticut, Kansas, New Mexico and 

 California. July-Sept. In the first edition both figures 

 196 and 197 and the descriptions apply to this species. 



