GENERA FUMARIA AND RUPICAPNOS. 245 
Figures are cited in all cases where they are thought good enough to be 
helpful in identifying the plants portrayed, but it must be acknowledged 
that in few genera are the existing plates so generally inadequate, and the 
number of really good drawings of Fumariœ is extremely small. Some of 
the icones, such as Hammar’s and most of those in the ‘Journal of Botany,’ 
show little more than detached flowers and fruits. The general poorness of 
the figures is no doubt due to the laboriously detailed work involved in 
depicting correctly the elaborately dissected foliage and the racemes of 
varying fantastic flowers of these plants. 
Exsiccata are usually quoted throughout both genera except in the case 
of some British species where this has already been done in “ Fumaria 
in Britain,” and in certain British varieties of which no authentic material 
has yet been incorporated in any public herbaria. When the herbarium 
. where the exsiecata has been seen is not mentioned, the plant will frequently 
be found either at the British Museum or at Kew. In some instances the 
herbarium is named owing to mixtures in sets having been noticed. 
The measurements in the following descriptions are taken from dried 
specimens unless the contrary is stated. The length of the corolla is that of 
the finest flowers, and is reckoned from the apex of the upper petal to the 
end of its spur; the form and measurements of the fruit refer to that organ 
in the dry condition as seen in profile with its greatest breadth in view. In 
life, the flower is slightly larger than when dry, as is also the fruit, which is 
then likewise appreciably longer in some species owing to the presence of a 
distinet, fleshy neck which disappears by shrinkage as the fruit becomes dry. 
The margins surrounding the green keel of the upper petal are uniformly 
referred to as wings in the genus Fumaria, and those, almost invariably 
smaller, similarly placed on the lower petal are simply termed margins. The 
wings are said to exceed the keel when they are more or less reflexed upwards 
and sufficiently developed to hide the keel when the flower is viewed laterally. 
Fruits are stated to be mucronate or mueronulate when the keel is produced 
at the apex into a short point bearing the deciduous style; they are described 
as apiculate when there is no projection of the keel and the style itself 
becomes detached more or less above its actual base, thus leaving a small 
apiculus of varying length. 
It may be well to recall that although the size of the flowers is not stated 
in Hammar’s monograph, a line depicting their actual length, and from 
which the size of the sepals can also be judged, is shown under each of his 
figures. 
The sign! implies that the plant mentioned has been seen either in life or 
in herbaria. Species and varieties admitted, of which no material has been 
seen, are marked “non vidi " (n. v.) and shown in square brackets fF 
