168 Wislizeniae generis Capparidacearum species novae etc. 
5. Wislizenia fruticosa Greene, l. c., p. 131. 
Wislizenia Palmeri Brandg., Proc. Calif. Acad. 2. Ser. II.: 128 in part, 
not of Gray. 
Low, compact, suffrutescent, with yellowish and shining bark on 
woody parts of stem, the flowering branches short, fastigiate, densely 
leafy, all parts glabrous, yellow-green; leaves with short stout petioles, 
the 3 leaflets notably unequal, oblong, acutish, the terminal one 3 cm 
long, the laterals little more than 2 cm; racemes short, sessile; pedicels 
much elongated: fruit about 5 mm wide; carpels pyriform, but widened at 
summit into a broad crown of large somewhat spreading tubercles developed 
abruptly from the termini of the ribs, the intervening striae not crowded 
on the sides of the carpel, but running into some few distinct reticulations. 
Lower Californian species, so far as known collected only by Mr. 
Brandegee, at Calamujuet, May 11, 1889; the type specimen being in 
U. S. Herbarium. I see nothing in this type from which one may infer 
even a near affinity for W. Palmeri. Its leaves are all trifoliolate. Its 
carpels are short in comparison, and their terminal tubercles are spread- 
ing, not convergent as in that; while by its unmistakably suffrutescent 
or even fairly shrubby habit and duration, it stands alone in a genus all 
other known species of which are annuals. 
6. Wislizenia costellata Rose, I. c., p. 132. 
Growing parts minutely and sparsely scaberulous; whole herbage 
more than usually glaucous, the branches very leafy, somewhat tortuous: 
leaves and their petioles of about equal length: leaflets cuneate-obovate, 
obtuse, only 1,5—2 cm long: racemes subsessile, 1—1,5 dm long: fruit 
only 3 mm wide, the carpels at summit almost as thick as long, truncate 
at both ends, marked longitudinally by 5 or 6 ribs and many intervening 
closely compacted striae, the main ribs gradually thicker toward the 
summit where each ends in a stout low tubercle. 
Sonora, Mexico, between Nogales and Guaymas, June 4, 1897, J. 
N. Rose, no. 1294; type specimens in the U. S. National Herbarium. 
Easily distinct from W. refracta by the very short and thick strongly 
ribbed carpels, which are also truncate at the apex. 
7. Wislizenia mamillata Rose, l. c. p. 132. 
Glabrous; leaves an slender petioles nearly as long as the leaflets, 
the latter also conspicuously petiolulate, the blades narrowly oblong, 
acutish, 2—3 cm long: fruiting raceme stout and elongated, 1—2 dm 
long, short-peduncled: fruit about 6,5 mm wide, the carpels shuttle-cock- 
shaped, coarsely and somewhat turgidly striate not at all reticulate, some- 
what constricted above the base, thence abruptly widening to a broad 
and strongly mamillate-tuberculate summit. 
Guaymas, Sonora, Mexico, June, 1887, Edw. Palmer, no. 74, also 
by J. N. Rose at the same place, June, 1897, Dr. Palmers’ specimens 
having been distributed for W. Palmeri; but in characters of fruit the 
plant is extremely different from W. Palmeri, and even the foliage is all 
trifoliolate, while in W. Palmeri all the leaves are simple, or unifoliolate. 
