Nov., 1923] 
RYDBERG — NORTH AMERICAN FABACEAE 
489 
The subtribe contains, besides the following three genera, a few confined 
to the Old World. Cracca is cosmopolitan of warmer regions, Peteria is 
endemic American, and Galega is Eurasian, introduced in the New World. 
Stipules not spinescent; lateral veins of the leaflets prominent. 
Upper filaments wholly united with the staminal sheath, forming a closed 
tube; banner in ours glabrous. 
Upper filament free, at least at the base; banner strigose on the back. 
Stipules spinescent; upper filament free; lateral veins of the leaflets obsolete. 
i. Galega [Tourn.] L. Sp. PI. 714. 1753 
Perennial herbs. The leaves are odd-pinnate, with semi-sagittate 
stipules. The flowers are in axillary or terminal racemes with narrow bracts 
and no bracteoles. The calyx has 5 subequal lobes. The corolla is white 
or light blue; the banner is obovate-oblong, narrowed below into a very 
short claw; the wings have an oblong blade with a prominent basal auricle, 
and a longer claw, and are adherent to the keel at the middle; the keel- 
petals are obtuse, more or less arcuate,' longer than the wings, and united 
nearly their whole length. The filaments are monodelphous, i.e ., all united 
into a sheath. The ovary is sessile, many-ovuled; the style glabrous; the 
stigma small, terminal. The pod is linear, terete, 2-valved, sometimes 
constricted between the seeds. Seeds are transversely oblong, without 
strophiole. 
Illustration: Plate XXXIII A. Galega officinalis L., X 2/3; 1. calyx, 
2. banner, 3. wing, 4. keel-petal, 5. staminal sheath, 6. pistil, X 2; 7. pod, 
X 1; 8. cross section of pod, 9. seed, X 2. 
In the Species Plantarum, the genus Galega contained only one species, 
Galega officinalis L., which therefore is the type. 
Synonyms: 
Callotropis G. Don. Gen. Syst. 2: 228. 1832. Type: C. tricolor (Hook.) 
G. Don., based on Galega tricolor Hook., which is supposed to be the 
same as G. officinalis L. 
Accorombona Endl. Gen. 1427. 1841. This was a substitute for Callo¬ 
tropis G. Don., not Calotropis R. Br. 1809. Hence the same type. 
The genus consists of 4 or 5 species native of southern Europe and the 
Orient. Of these, G. officinalis is sometimes cultivated as a forage plant 
and in olden times was used in medicine. It has been found occasionally 
in the western states from Kansas to Utah, as an escape from cultivation 
or introduced incidentally among seeds. The genus is closely related to 
Cracca, differing mainly in the monadelphous stamens. The racemes are 
mostly axillary, and therefore the genus is, according to Bentham and 
Hooker, anomalous in their subtribe Tephrosieae, but, as will be shown, 
this abnormality is found even in species of Cracca. 
2. Cracca L. Sp. PI. 752. 1753 
Herbs, often woody below, or shrubs. The leaves are odd-pinnate, the 
leaflets striate, with veins oblique to the midrib and parallel; the stipules 
1. Galega. 
2. Cracca. 
3. Peteria. 
