ANALYTICAL DRAWINGS OF MONOCOTYLEDONS I.— continued. 
The Branched Bur-reed ( Sparganium erectum Linne) has spherical flower-heads. 
Fig. i in the second row on our Plate represents a staminate inflorescence ; Fig. 2, 
a single staminate flower with three stamens ; Fig. 3, a single stamen ; Fig. 4, a 
section through a carpellate flower-head ; and Fig. 5, a single carpel. 
The Arrow-grass ( Trtglochin palustre Linn£), occupying the third row on the 
Plate, represents the Family Juncagine<e , and, with the four following types, belongs 
to the varied aquatic Order Helobie <e. Fig. 1 is one of its perfect, anemophilous, 
protogynous flowers ; Fig. 2 is its gynxceum ; Fig. 3, the fruit ; Fig. 4, the same, 
showing its characteristic dehiscence ; and Fig. 5, the same in transverse section. 
The Water-plantain ( Alisma Plantago-aquatica Linne), in the fourth row on the 
Plate, and the Arrow-head ( Sagittaria sagittifolia Linne), in the fifth, belong to the 
Family Alismace<e , whilst the Flowering Rush ( Butomus umbellatus Linn6) is the type 
of the nearly allied Bulomacete. Fig. 1 in the fourth row is a flower of Alisma ; 
Fig. 2, its essential organs ; Fig. 3, the calyx and carpels ; and Fig. 4, the same 
as seen from above. 
Fig. 1 in the fifth row is a flower of the Arrow-head, as seen from below ; 
Fig. 2, one of the stamens dehiscing ; Fig. 3, the calyx and carpels ; Fig. 4, the 
same in longitudinal section ; and Fig. 5, a single carpel. 
Fig. 1 in the sixth row is a flower of the so-called Flowering Rush, as seen 
from above ; Fig. 2, as seen from below ; Fig. 3, a stamen ; Fig. 4, a carpel ; 
Fig. 5, the same in section ; Fig. 6, the ripe fruit, a ring of follicles ; and Fig. 7, a 
transverse section through it. 
The seventh row of figures represents the Frog-bit ( Hydro charts Morsus-rarue 
Linne), Fig. 1 being a staminate flower, as seen from above ; Fig. 2, the same 
in section ; Fig. 3, a stamen ; Fig. 4, a stamen showing its “ barren ” or non- 
antheriferous branch ; Figs. 5 and 6, stigmas opposite to the sepals and to the petals 
respectively ; Fig. 7, the fruit; Fig. 8, the same dehiscing ; and Fig. 9, a transverse 
section of it. 
The eighth row of figures represents the singular inflorescence of the Lords- 
and-ladies ( Arum maculatum Linne). Fig. 1 shows the entire spadix, and Fig. 3, 
the same in a later stage. Fig. 2 is a stamen dehiscing ; Fig. 4, an ovary, both 
stamens and ovaries each constituting an entire flower; Fig. 5 is a side view of the 
same ; Fig. 6, a fruit seen in section ; Fig. 7, a seed ; and Fig. 8, one in section, 
showing embryo and albumen. 
The Wood-rush ( Luzula campestris De Candolle), represented in the last row of 
figures, belongs to the Rush Family ( Juncacea ; ). Fig. 1 shows one of its wind- 
pollinated flowers ; Fig. 2, the same enlarged ; Fig. 3, the gynceceum enlarged ; 
Fig. 4, a transverse section of the same ; and Fig. 5, a fruit after bursting, also 
enlarged. 
