ANALYTICAL DRAWINGS OF MONOCOTYLEDONS III— continued. 
essential organs, showing the style projecting beyond the cone of anthers ; the fifth, 
a young fruit surmounted by the withered remains of the perianth ; and the sixth, 
a transverse section across the ovary. 
The genus Leucojum (the Snowflakes) differs in having more than two leaves, 
a double spathe, generally more than one flower on the scape, and the six perianth- 
leaves alike in form and size, white with a thickened green tip. The anthers have no 
connective-points, and the style is club-shaped. There is no excretion of honey in 
the flower ; but, as sugar occurs in the tissue of the perianth-leaves under the green 
spots, it is possible that, as in Orchids, some insect-visitors may delay to bore for it. 
The first figure in the second row on our Plate represents a flower of Leucojum in 
longitudinal section ; the second, the essential organs, showing the stamens arising 
divergently from an epigynous disk ; the third, the capsule dehiscing ; the fourth, 
the seed ; and the fifth, the same in section, showing the albumen and embryo. 
The genus Narcissus may have flat or cylindric leaves and yellow or white 
flowers, solitary or several in an umbellate cluster. Its most distinctive feature is 
the perianth, in which the six sub-equal segments are united below into a tube, which 
is produced outwards as a cup-shaped or bell-shaped corona or coronet, generally 
differing in tint from the perianth-leaves. The six stamens are epiphyllous but do 
not project beyond the coronet. 
Our British species ( Narcissus Pseudo-narcissus Linne) has nearly flat, glaucous 
leaves ; a solitary yellow flower ; acute pale yellow perianth-segments ; and a bell- 
shaped, lemon-yellow coronet, as long as the perianth-segments, with a crisped and 
obscurely six-lobed margin. In the third row of figures on the Plate, the first shows 
a flower in longitudinal section ; the second, its essential organs ; the third, an unripe 
fruit, with withered perianth and spathe, of Narcissus poeticus L. ; the fourth, the same 
later ; and the fifth, a transverse section of it. 
The small Family Dioscoreace a is mainly Tropical and consists of perennials 
with large tubers and annual twining aerial stems, net-veined leaves, and small 
inconspicuous dioecious blossoms. The genus Tamus comprises two species, both of 
which are European, characterised by red, three-chambered, few-seeded berries. In 
the penultimate row of figures on our Plate, the first two figures represent male and 
female flowers of our Black Bryony ( Tamus communis Linn6) ; the third shows the 
gynaeceum ; the fourth, a ripe berry ; and the fifth, a longitudinal section through one. 
The much larger and even more isolated Family Iridace<e is largely subtropical, 
being especially abundant in South Africa ; but the genus Iris belongs to North 
Temperate regions. The yellow Iris Pseudacorus Linne is here represented first by 
one of its recurved outer perianth-leaves showing the honey-guides and a stamen, and 
secondly by a section through part of the flower exhibiting also the petaloid style and 
transverse linear stigma. The third figure shows the gynaeceum ; the fourth, a 
longitudinal, and the fifth, a transverse, section through the same ; whilst the sixth 
is a seed. 
