502 EUIOCAULONACEiE. (I'IPEWOKT FAMILY.) 



tumid and dark brown at the base. Spikes 1' ■ U' long. Petals 9" long, ex- 

 panding at midday. 



* * * Sterile Jilamenls beardless : leaves filiform. 



15. X. tenuifolia, n. sp. Smooth ; scape slender, terete or 1-anglcd ; leaves 

 filiform or bristle-like, compressed ; spikes ovoid, few-flowered ; lateral sepals 

 lanceolate, the narrowly winged keel cut-seiTate ; petals obovate ; seeds linear- 

 oblong, smooth. — Open grassy pine-barren swamjis, Florida to North Carolina. 

 July -Sept. — Scapes clustered, 10'- 12' high. Leaves 4'- 6' long. Spikes 

 •2"- 4" long. lVt;ils .3" long. 



16. X. Baldwiniana, R. & S. (X juncca, /JaW;*-.) "Root perennial; 

 scape terete, sheathed at the base, 6' -12' high ; leaves 4' -8' long, terete, hol- 

 low, acute ; head oval ; bracts nearly round ; calyx about as long as the bracts, 

 the keel slightly toothed, filaments naked." Baldwin in Kli — Damp ])ine bar- 

 rens, near St. Mary's, Georgia. May and June. ( * ) 



Ordkr 158. ERIOCAITLONACE7E. (Pipkwort Family.) 



Perennial chiefly stcmloss marsh hoi-bs, witli narrow tuftecMeavcs, and 

 minute monoecious or dicecious flowers, collected in a dense hairy cliafiy- 

 bracted head. — Stam. Fl. Sepals 2 - 3. Corolla tubular, bilabiate or 

 3-toothed, or sometimes wantinfr. Stamens 2-6: anthers introrse. — 

 Pi^t. FL Sepals and petals 2-3. Ovary 2-3-celled, with a single 

 orthotropous ovule in each cell. Style 2 - 3-parted. Capsule loculici- 

 dally 2 - 3-valved, 1 - 3-seeded. Embryo minute at the apex of the 

 albumen. — Leaves concave and partly claspinnj at the base. Scape 

 furrowed and commonly twisted, with a spathe-iike sheath at the base. 

 Exterior scales broader, empty, hthI involucratc. Flowei-s fringed with 

 white club-shaped hairs. Corolla white. 



Synopsis. 



1. ERIOCADI.ON. Stamens 4. Anthers 2-cclled. Style 2-partca. Corolla 2-lippfd. 



2. Pyj'.I'ALANTIlUS. SUiuiens .3 Anthers 2-collod. Stj le S-parted, the lobes entire. 



.3. I.ACIINOCAULON. Stamens 3. Anthers l-celled. Style 2-3 parted, the lobes entire, or 

 2-cleft. 



1. ERIOCAULON, L. ruicwonT. 



Flowers monoecious, each in the axil of a sciilc-like bract. Sepals 2 -.3. Co- 

 rolla of the staminatc flowers tubular, 2-lipped or .3-l()bed ; of the pistillnte 

 flowers 2-3-petalous. Stamens 4 or 6 : anthers 2-celled. Style 2-3-partcd: 

 .stigmas 2 - 3. Capsule 2- 3-cclled, 1 -3-sceded. — Scapes single or numerous, 

 mostly from a ."^hort and villous rootstock. Lobes of the corolla furnished with 

 H blackish gland on the inner fa^-e. commnnlv '"'Mnl'd witli cbib-slinpril liiiirs. — 

 Tlic following species are all ictraiiibou.^, wiili a ^-parted style and a 3celled 

 rapsulc. 



