Typhaceae — J uncacese. 1 49 



ORDER 85. — Typhaceae. 



IVTarsh or aquatic plants having linear rigid leaves with sheathing bases. 

 Flowers moncecious in cylindrical spikes or heads._ Spathe none. Perianth 

 none, or of imbricated membranous scales or hairs. Stamens 3 or 6, fila- 

 ments long and weak, anthers wedge-shaped. Ovary superior I -celled. Fruit 

 dry indehiscent i -celled i -seeded. 



Flowers in globose heads, Sparganium I . 



Flowers in cylindric spikes, ...... Typha II. 



\.—SPARGANlUM. 



Flowers in dense globular heads each with a perianth of 3 scales, stamens 

 of staminate flowers 3, stigma of pistillate flowers awl-shaped. 



SPARGANIUM RAMO'SUM (104). Branched Bur-weed. 6—7. 



(1457) Stem 2—4 ft. high erect branched, leaves 2—5 ft. triangular at the 

 base with concave sides, heads of ,«taminate flowers \ — | in diameter 

 brown. Ditches. 



SPARGA'NIUM SIM'PLEX (92). Unbranched Bur-weed. 7—8. 

 (1459) Stem I — 2 ft. high erect unbranched, leaves triangular at the base with 



flat sides, heads of staminate flowers yellow. Ponds, ditches, and 



river banks. 



Sparga'nium na'tans (46). Floating Bur-weed. 8—9. Stem simple, 

 (1461) leaves floating flat concave at the base, heads \ in. diameter. 



[G. {Lawkland Moss. ) 



U.— TYPHA. 



TY'PHA LATIFO'LIA(79). Reed-mace Bulrush. 7—8. Leaves 3— 6 

 (1455) ft., spike of pistillate flowers ^i ft. long dark brown silky bearing 



above it the slender yellow terminal spike of staminate flowers, perianth 



of 2 — 3 silky jointed scales. Ponds, 



ORDER 86. — Juncacese. 



Perianth 6-partite inferior glumaceous. Stamens 6 inserted into the base 

 of the segments. Ovary i- or 3-celled. Style I. Stigmas 3. Leaves hollow 

 or flat and channelled. 



Leaves glabrous, cylindrical, Juncus I 



Leaves hairy, €at, ,....,.. Luzula 1 1 



