132 27. LYTHEACEiE. 28. TAMABIBOAOEai. 



Order XXVII. LYTHEACE^. 



Oal. tubular, lobed ; valves valvate or distant in the bud, some- 

 times Tvitli intennediate teeth. Pet. between the lobes of the 

 calyx, very deciduous. Stam. inserted in the tube of the cal., 

 below the pet. and equalling them or 2, 8, or 4 times as many. 

 Ovary free, 2 — 4-ceIled. Style 1. Caps, membranaceous, 

 usually (by abortion) 1-ceUed, with many seeds and a central 

 placenta, covered by the calyx. Embryo straight. — Stip. 0. 



1. Lythbtjm. Cal. tubular, cylindrical, with 8 — 12 teeth; 

 4 — 6 broader, erect ; alternate teeth subulate. Pet. 4 — 6. 

 Stam. as many as or twice the niunber of the petals. Style 



filiform. Caps. 2-celled many-seeded. 



2. Pbplis. Cal. helhhaped with 12 teeth, of which 6 are 

 broader and erect, 6 subulate. Pet. 6, minute, fugacious. 

 Stam. 6, Style very short. Caps. 2-celled, many-seeded. 



1. Lx'iHBUM Linn. Loosestrife. 



1. L. Salicdria (L.); I. lanceolate from a cordate base opposite 

 or whorled, fl. in whorled leafy spikes, bracts 0, subulate calyx- 

 teeth twice as long as the others, stam. 12, — S, B. 1061. — 

 Upper 1. usually falling short of the flowers, or so large as 

 totally to destroy the spiked appearance of the plant. St. 2 — 4 

 feet high and 1. nearly glabrous, or downy with crisped hairs. 

 Fl. large, purple or crimson. — Ditch-banks and damp places. 

 P. VII. Vin. Purple Loosestrife. E. S. I. 



2. L. Hyssopifdlia (L.) ; I. alternate linear-lanceolate blunt, fl. 

 axillary solitary, bracts 2 minute subulate, calyx-teeth all short, 

 stam 6. — E. B. 292. — St. mostly procximbent, spreading, simple 

 or branched. Fl. small, light purple. Glabrous. — Damp places 

 where water has stagnated, rare. A. VI. — X. E. I.' 



2. Pbp'iis Linn. Water-Purslane. 



1. P. Por'tula (L.) ; 1. opposite obovate stalked, fl. axillary 

 solitary sessile. — E. B. 1211. St. 1. 7. — Pet. often wanting. 

 Oal.-tube short, shortly bell-shaped, shorter than the capsule. 

 St. 4 — 6 in. long, prostrate, creeping. — Damp places. A VJI 

 VIII. E. S. l! 



Order XXVIII. TAMAEISCACEJE. 



Oal 4 — 6-parted, persistent, imbricate in the bud. Pet. 4 6 



withering, from the base of the calyx. Stam. equal to or twice 

 as many as the pet., from the mar^n of a shieldlike disk. Caps. 

 1-eeUed, 3-valved, many-seeded, loculicidal. Placentas often 



