ANALYTICAL DRAWINGS OF THE OLIVE, GENTIAN, AND 
PERIWINKLE FAMILIES— continued. 
of the stamens ; Fig. 2 being the gynaeceum ; Fig. 3, the twice-forked stigma ; 
Fig. 4, an opening flower-bud ; Fig. 5, the fruit enclosing in the persistent calyx ; 
and Fig. 6, a transverse section. 
The fifth line represents the Spring Gentian ( Gentiana verna Linne). Fig. 1 is 
the corolla, as seen from above, of l^atural size, showing the convolute oblique 
segments. Fig. 2 is the same opened so as to show the gynaeceum and the insertion 
of the stamens. Fig. 3 shows the double. pleat between the lobes of the corolla ; 
Fig. 4, the gynaeceum, the form of the stigma being well seen ; Fig. 5, the same in 
longitudinal section ; and Fig. 6, the ripe fruit dehiscing septicidally. 
The sixth line illustrates the Buckbean ( Menyanthes trifoliata Linne). Fig. 1 is 
a flower, as seen laterally ; Fig. 2, the same, as seen from above ; and P ig. 3, a petal 
and a stamen, these three figures and Figs. 9 and 10 being of natural size. Figs. 4 
and 5 are stamens in front and side view, showing the divergent anther-lobes ; 
Fig. 6, the gynaeceum ; Fig. 7, a transverse, and Fig. 8, a longitudinal, section of 
the ovary ; Fig. 9, two fruits, not often seen in England ; Fig. 10, a cross section 
of a fruit ; and Fig. 11, a portion of the placenta with seeds attached to it. 
The penultimate line of figures represents the bloating Heart or Villarsia 
( Nymphoides peltatum Britten and Rendle), Fig. 1 being the calyx ; P’ig. 2, the 
corolla from within, showing the insertion of the five stamens ; Fig. 3, one of the 
erose or irregularly notched segments of the corolla ; Pig. 4, the gynaeceum ; 
Fig. 5, the same enlarged, showing the honey-glands of the disk ; Fig. 6, a 
fruit ; and Fig. 7, a cross section through it. 
The last line of figures illustrates the Lesser Periwinkle ( L'tnca minor Linne), 
the only British species of the Family Apocynace<e. Fig. 1 is the. flower, as seen 
from above ; Fig. 2, the same in side view, showing the deeply-divided segments of 
the calyx ; Fig. 3, a petal, showing the fringe in the throat of the corolla-tube and 
a stamen removed from its recess ; Fig. 4, part of the corolla-tube, as seen from 
within, showing the position of the anthers and the ligule-like corona ; Fig. 5, 
a stamen from within, showing the hairy connective ; Pig. 6, the gynaeceum, w’ith 
the carpels showing above the top of one of the nectaries ; Fig. 7, the calyx and 
ovary, as seen from above ; Fig. 8, the calyx and follicles, enlarged ; Fig. 9, the 
two follicles ; Fig. 10, a longitudinal section through one of them ; and Pig. 11, 
one of the seeds. Figs. 5 and 6 and 8 to 1 1 are enlarged. 
