EEL-GRASS FAMILY 



95 



2. Phyllospadix scouleri Hook. 

 Scouler's Surf-grass. Fig. 200. 



Phyllospadix scouleri Hook. Fl. Bor. Am. 2: 171. 183S. 



Phyllospadix sernilatus Rupr. ; Asch. Linnaea 35: 169. 

 1867. 



Stem simple or branched, winged, 1-4 dm. 

 long. Leaves all submerged, ribbon-like, flat, 0.5-2 

 m. long. 2-4 mm. wide, entire or rarely serrulate, 

 obtuse at the apex, sheathing at the base ; primary 

 nerves 3 ; peduncle simple solitary or sometimes in 

 pairs, basal or nearly basal ; spathe prominently 

 scarious-winged ; staminate spadix about 6 cm. 

 long; anthers about 4.5 mm. long; fruit flask- 

 shaped, about 3.5 mm. long, beaked by the per- 

 sistent style, deeply cordate-sagittate at the base, 

 projections obliquely striate or costate on the 

 winged margin. 



Growing on rocks in the surf; Vancouver Island to 

 Santa Barbara, California; also in Japan on the coast of 

 Ilokaido. Type locality: Dundas Island, Columbia River. 



Family 6. LILAEACEAE. 

 Flowering Quillwort Family. 



Acaiilescent, annual marsh plants, with radical, terete, sheathing leaves, the 

 sheaths often containing minute, hyaline scales. Flowers perfect or unisexual in 

 two types of inflorescence, basal and scapose. Perianth none. Basal flowers 

 enclosed by the sheathing leaf-bases, pistillate; carpels solitary, 1-seeded; style 

 long and filamentous, tipped by a capitate stigma ; fruit a ribbed caryopsis. Sca- 

 pose inflorescence of staminate, pistillate and perfect flowers irregularly disposed 

 in a spike : staminate flowers of a single, sessile. 2-celled anther, the connective 

 dilated and bract-like ; pistillate flowers of single. 1-seeded carpels, subtended bv a 

 bract or bractless, the lower with a long style, the upper with shorter styles, the 

 stigmas papillose; fruit a winged caryopsis; perfect flowers with a stamen and 

 pistil similar to those in the unisexual flowers but united at the base. 



a family containing a single monotypic genus of the Pacific regions of North and South America. 



1. LILAEA Humb. & Bonpl. PI. Aequin. 1 : 222. 1808. 



A monotypic genus with the characters of the 

 family. [Name in honor of the French botanist, 

 A. R. Delile. 1778-1850.] 



1. Lilaea subulata Humb. & Bonpl. 



Flowering Quillwort. 



Fig. 201. 



pi. 



Lilaea subulata Humb. & Bonpl. PL Aequin. 1 : 222 



63. 1808. 

 Heterostylus gramineus Hook. Fl. Bor. Am. 2: 171. 1838. 



Acaulescent annual. Leaves terete, fleshy, 5-35 

 cm. long, 2^.5 mm. thick, tapering to the acute 

 apex, stipular sheaths hyaline, 4-10 cm. long; 

 basal flowers with styles 10 cm. long or longer, 

 scapose flowers spicatc, on terete scapes. 4-20 cm. 

 long; spikes 0.5-2 cm. long, usually many- 

 flowered ; anthers nearly sessile, their connective 

 dilated into a thin membranous oblong-cuspidate 

 bract-like appendage ; the pistillate flowers of the 

 spike bracted or bractless, the styles of the lower 

 flowers 6 mm. long or longer, much shorter in 

 the upper flowers ; mature fruit of the basal 

 flowers, 4-6.5 mm. long, ribbed, those of the 

 scapose flowers smaller, winged. 



Growing in mud about lakes, pools, and slow running 

 streams; British Columbia soutliward through the moun- 

 tains and lowlands of the Pacific region to Mexico; also 

 in South America. Type locality: Santa Fe de Bogota. 



