338 
89. AROIDE^. 
— Sphagnous parts of bogs. LakelyCar, Boroughbridge ; Thome 
Moor, Doncaster, Yorkshire. Bomere, Shropshire. Methvin, 
Perthshire. P. VII. E. S. 
6. Triglochin Linn. 
1. T. maritimum (L.); fr. ovate of fi combined capsules. — 
E. B. 25.5. R. vii. t. 52. St. 78. 5. — L. all radical, line.ar. FI. in 
a lax simple spike or raceme, greenish. Fr. nith 6 angles and 
constricted below the stigm., or without angles or constriction. — 
Salt marshes. P. VII. VIII. 
2. T. palustre (L.) ; fr. linear angular of 3 combined capsules. 
— E. B. 36(1. R. vii. t.51. — Taller than the preceding but closely 
resembling it. Stoloniferous. — Marshy places. P. VI. VII. 
Order LXXXIX. AROIDEiE. 
FI. mostly unisexual, arranged upon a spadix. Perianth 3 — 4- 
or 6-parted or 0. Stam. numerous or definite and opposite to 
the segments of the perianth. Anth. bursting outwards. Ovaries 
free, solitary or numerous, 1 — 3-celled, 1- or many-seeded. 
Stigmas 1 or 2. Fr. not bursting, succulent or dry. Embryo 
in the axis of fieshy albumen. — The characters of this and the 
preceding Order appear to require revision and probably a new 
arrangement of the genera. 
Suborder I. TYPIlINEiE. 
FI. numerous, w'ith a perianth. Stam. 3. Anth. vvedgeshaped, 
erect. Filaments long, slender. 
1. Typha. Sterile and fertile spikes cylin(hical. Stam. sur- 
rounded W'ith setaJ. Anth. 3 together on one filament. 
Ovary surrounded with setaj, at length stalked. 
2. Sparganium. FI. in dense globose heads, eaeh with a 
single 3-leaved perianth. Fruit dry, sessile. 
Suborder II. ARINEjE. 
FI. numerous. Anth. 1 — 2- or many-celled, ovate. Filaments 
very short. 
3. Acorus. Sj)ath 0. Perianth 6-leaved, inferior, persistent. 
Stam. 6, filiform. 
4. Arum. Spath of 1 leaf, convolute at the base. Perianth 0. 
Male fl. of 1 sessile 2-eelled anther. Female fl. lowermost 
on the spadix, of a solitary pistil. Fr. suceulent. 
