(PLPEWOKT FAMILY.) 489 



American species are all steinless, with a depressed head, and have the parts of 

 the flowers in twos, the stamens 4. 



1. E. decailglllare, L. (syn. Pluk., &c.) Leaves linear-sword-shaped, 

 ascending (6' -15' long), of a rather firm texture; scape 10 -\2-ribbed (l-3 

 high) : chaff' (bracts among the flowers) pointed. 1J. (E. serotinum, Walt.) 

 Pine-barren swamps, New Jersey ? to Virginia, and southward. July - Sept. 

 Involucral scales roundish, straw-color or light brown. Flowers and bracts, a 

 in the following, tipped with a white beard. 



2. E. gliaphalodes, Michx. Leaves short and spreading (2' -5' long), 

 yassy-awl-shaped, soft and cellular, tapering gradually to a point, mostly 

 shorter than the sheath of the IQ-ribbed scape; chaff" obtuse. 1J. (E. decangulare, 

 L,, in part, viz. as to pi. Clayt.) Pine-barren swamps, New Jersey to Vir- 

 ginia, and southward. June -Aug. This and the last have been variously 

 confounded. 



3. E. Septanglllare, Withering. Leaves short (I' -3' long), awl-shaped 

 pellucitl, soft and very cellular; scape 1-striate, slendec, 2' -6' high, or when 

 submerged becoming l-6 long (Torr.), according to the depth of the water; 

 chaff acutish. 1J. (E. pelluciclum, Michx.) In ponds or along their borders, 

 from New Jersey and Peun. to Michigan, and northward. Aug. Head 2" - 3" 

 broad ; the bracts, chaff, &c. lead-color, except the white coarse beard. (Eu.) 



2. PJEPALANTHUS, Mart. (Sp. of ERIOCAULON of authors.) 



Stamens as many as the (often involute) lobes of the funnel-form corolla of 

 the sterile flowers, and opposite them, commonly 3, and the flower ternary 

 throughout. Otherwise nearly as in Eriocaulon. (Name from iraiira\T), dust or 

 flour, and avdos, flower, from the meal-like down or scurf of the heads and flow- 

 ers of many [South American] species.) 



1. P. flavidllS, Kunth. Tufted, stemless ; leaves bristle-awl-shaped 

 (1'long); scapes very slender, simple, minutely pubescent (6' -12' high). 5- 

 angled ; bracts of the involucre oblong, pale straw-color, those among the 

 (ternary) flowers mostly obsolete ; perianth glabrous ; sepals and petals of the 

 fertile flowers linear-lanceolate, scarious-white. y. ? (Eriocaulon flavidum, 

 Michx. ) Low pine barrens, S. Virginia and southward. 



3. L.ACIIiVOCAlJL.ON, Kunth. HAIRY PIPE WORT. 



Flowers monoecious, &c., as in Eriocaulon. Calyx of 3 sepals. Corolla 

 none ! Ster. Ff. Stamens 3 : filaments below coalcsccnt into a club-shaped 

 tube around the rudiments of a pistil, above separate and elongated : anthers 

 1-celled ! Fert. Fl. Ovary 3-celled, surrounded by 3 tufts of hairs (in place 

 of a corolla). Stigmas 3, two-cleft. Leaves linear-sword-shaped, tufted. 

 Scnpe slender, simple, bearing a single head, 2-3-anglcd, hairy (whence the 

 name, from Xa^w?, wool, and KOV\OS, stalk). 



1. Li. Michaiixii, Kunth. (Eriocaulon villosum, Midix.) Low pine 

 barrens, Virginia (Pursh), and southward. 



