412 CXXII. IRIDEÆ. [Sisyrinchium. 
*5. SISYRINCHIUM, Linn. 
subtending the cluster on the main axis, the second outer bract and the 
inner membranous ones each opposed to a pedicel within the cluster, 
fruiting pedicels exserted from the bracts. 
e genus is widely spread over North and South America, one species also found 
in various districts of the Old World, but in maay places introduced. pane two Aus- 
n ones 
1. S. Bermudiana. 
2. S. micranthum. 
1. S. Bermudiana, Li»; Cav. Diss. vi. 346, t. 192. A perennial 
with erect stems of 6 in. to 1 ft., prominently 2-angled or 2-edged, or 
with 2 narrow acute wings sometimes broader under the bracts. Flowers 
2 to. 6 together MGR 3 or 4) in a terminal cluster, the filiform 
pedicels almost concealed within the 2 outer sheathing braéts, of which 
the outermost one often ends in a leaf tip exceeding the flowers, but 
occasionally both are nearly equal. Parinath blue, the segments 3 to 
4 lines long ' 
À very common North American species also indigenous perhaps in some parts of 
Western Europe and an introduced colonist in many other countries. It is said to be 
well established in some part of N. S. Wales and Victoria. 
*2. S. micranthum, Cav. Diss. vi. 345, t. 191. A slender annual, 
not above 6 in. high, the branches flattened and 2-angled but not 
two from lower axils., Outer bracts of the cluster $ to lin. long. 
Pedicels very slender. Perianth- segments about 14 lines long. Staminal 
tube about half that length.— Bot. Mag. t. 2110. 
A South American species, introduced as à weed into several parts of Queensland 
and IN. S. W'ales, and now said to be exceedingly abundant about Brisbane and 
Port Jackson, 
6. LIBERTIA, Spreng. 
(Renealmia, R. Br: ; Nematostigma, Dietr.). 
Perianth regular, divided to the ovary into 6 nearly equal spreading 
segments. Filaments free; anthers linear-sagittate. Style shorter - 
