530 ERIOCAULONACE^E. (PIPEWORT FAMILY.) 



mostly from a short and villous rootstock. Lobes of the corolla furnished 

 with a blackish gland on the inner face, commonly bearded with club-shaped 

 hairs. The following species are all tetrandrous, with a 2-parted style and a 

 2-celled capsule. 



1. E. decangulare, L. Leaves from lanceolate to linear-subulate, con- 

 cave, obtuse ; scapes single or clustered ; head compact, hemispherical, at 

 length globose ; scales of the involucre numerous small, oblong, acutish, 

 straw-colored, or light brown, passing into the liuear-spatulate acuminate 

 bearded bracts, these longer than the flower. Bojrgy places, Florida, and 

 northward. July - Sept. Scapes -2 - 3 high. Leaves 4' - 12' long, 2" - 6" 

 wide. 



2. E. gnaphalodes, Michx. Leaves lanceolate-subulate, flat, very 

 acute, rigid, or the immersed ones thiu and pellucid; scapes few or single; 

 head hemispherical; scales of the involucre few, oblong or roundish, very ob- 

 tuse, turning lead-color ; bracts shorter than the flower, spatulate, their broad 

 and bearded summit turning blackish. Swamps and shallow ponds, Florida, 

 and northward. April- June. Scapes l-2 high. Leaves 2' -6' long. 



3. E. septangulare, Withering. Leaves short (!'- 2' long), subulate- 

 linear, pellucid ; scape weak and slender ; head small, hemispherical, densely 

 white-bearded ; scales of the involucre rounded ; bracts spatulate. Wet pine 

 barrens, Mississippi (Prof. Ili/gard). 



4. E. Ravenelii, Chapm. Smooth throughout; root fibrous; leaves 

 linear, acute, flat ; scapes low and slender, clustered ; heads small (!"- 2" in 

 diameter), globose; scales of the involucre few, oblong, very obtuse, whitish, 

 pellucid ; bracts dark brown, beardless. Wet places, Florida to South Car- 

 olina. Scapes 1'- 6" high. Leaves l'-2' long. 



2. P^PALANTHUS, Martius. 



Flowers monoecious. Staminate Fl. Sepals 3. Corolla tubular, 3-toothed. 

 Stamens 3 : anthers 2-celled. Pistillate Fl. Sepals and petals 3. Style 3- 

 parted, the .divisions entire : stigmas 3. Capsule 3-celled. Habit of the 

 preceding. 



1. P. flavidulus, Kunth. Leaves short (!'- 2' long), subulate, smooth, 

 or sparingly pubescent ; scapes numerous, filiform, 5-furrowed, hairy ; heads 

 hemispherical, yellowish white ; scales of the involucre oblong, acute, smooth ; 

 flowers slender, pedicelled ; sepals linear, acute; stamens and styles exserted. 

 (Eriocaulou, Michx.) Low sandy pine barrens. April-May. Scape 6'- 

 \-l' high. 



3. LACHNOCAULON, Kunth. 



Flowers monoecious. Staminate Fl. Sepals 3, equal. Corolla none. Sta- 

 mens 3, with the filaments united below into a club-shaped tube : anthers 1- 

 celled. Pistillate FL Sepals 3, equal. Corolla none, or reduced to tufted 

 hairs. Style club-shaped, 2-3-parted, the divisions entire or 2-cleft : stigmas 

 2-6. Capsule 2 -3-celled. Habit of the two preceding. Bracts and sepals 

 blackish, fringed with club-shaped hairs. 



