Phend.ph, 24. JUNCAGINE^. 158. Sclieuclizeria. 219 



Juncus floridus minor, Bank, Pinax, 12. 

 Juncoidi affinis palustris, Scheuchz. Gram. 336, 

 Scheuchzeria palustris, Lin. S. P. 482. 



Spongy bogs ; perennial ; June. 



Scape 9 in. high ; leaves longer than the scape ; spike 3 

 to 6-flowered. 



II. 159. TRIGLOCHIN. Linnaeus. Arrowgrass. 



Perigonium 6-sepaled ; sepales deciduous, 3 inner nearly 

 petaloid; stamens 6, very short; ovaries 3 or 6, connivent; 

 stigmata 3 or 6, radiating at the tip of the ovaries ; pericarps 

 (camares) regmata? 3 or 6, 1 or 2-seeded, affixed at top to 

 a common axis. — Root fibrous, thickened in the upper part 

 as if bulbose ; scape round ; leaves semi cylindrical, bundled, 

 sheathing at the base; spike linear, many-flowered; hractece 0. 



Triglochin palustre. Marsh arrowgrass. 



Capsules 3, smooth ; etarion linear, narrowed at bottom. 



Juncago palustris vel vulgaris, Rail Syn. -435, 1. 

 Gramen aquaticiim spicatum, Ger. tm. 13, 2. 

 Gramen aquaticum spicatum alterum, Park. 1279. 

 Triglochin palustre, Lin. S. P. 482. 

 Spiked matergrass. 



Meadows and sides of water; perennial; July. 

 Leaves linear, channelled"; scape 12 in. high. 



2. Triglochin maritimum. Sea arrowgrass, 



Capsides 6, furrowed ; etarion oval. 



Gramen maritimum spicatum, Raii Syn. 435, 1 ; Park. 1270, 

 Gramen spicatum alterum, Ger. em. 20. 

 Triglochin maritimum, Lin. S. P. 483. 

 Saltmarsh spikegrass. 



Meadows near the sea ; perennial ; May to August. 

 Leaves broader and more fleshy than the former. 



Fam. XX. 25. HYDROCHARIDEtE. De Candolle. 



Ferigonium petaloid, 6-sepaled, adherent to the ovary ; 

 stamens 9 to 20, on the ovary in hermaphrodite flowers, or 

 in its place in male flowers ; ovary 1, 1 or many-celled; 

 stigmata 3 or 6, 2-cut ; pericarpiiim 1 or 6-celled ; seeds 

 many ; spermodermis simple ; perisperm fleshy ; corculum 

 basillary. — Herb aquatic, floating ; root fibrous ; flowers 

 hermaphrodite or unisexual. 



Stamens 6 ; capsules roundish, leathery 



Hydrocharis. 160. 



Stamens 20; capsules narrowed, fleshy 



Stratiotes. 161. 



