130 Greene Revision of the Genus Wislizenia. 



2. Wislizenia melilotoides sp. nov. 



Glabrous, stout and low, freely and somewhat fastigiately branched, all 

 the branches short, very leafy, ending each in a short subsessile raceme : 

 leaflets cuneate-obovate, very obtuse, almost truncate, mucronulate, 1-2 

 cm. long: fruiting racemes narrow, the oldest only 5-7 cm. long; fruit 4 mm. 

 wide; carpels long-pyriform, remarkably smooth and rounded, at most 

 only obscurely lineolate and with traces of two or three tubercles, more 

 usually with none at all. 



Vicinity of Holbrook, northern Arizona, apparently first collected by 

 H. H. Rusby, August 20, 1883, No. 581 as in U. S. Herb. ; again at 

 Hardy Tank in the same region, by E. O. Wooton, 1892; the most 

 perfect specimens by Miss Myrtle Zuck, at Holbrook, August 4, 1896. 



In habit, form and hue of the very copious foliage, and short racemes, 

 this species strongly recalls a yellow-flowered Sweet Clover. Its fruit char 

 acters are very strong, the carpels being usually quite smooth, and with a 

 shallow elongated pit or hollow on the sides marking the form of the seed 

 within. 



3. Wislizenia Calif ornica sp. nov. 



Wislizenia rtfracta, Greene, Fl. Fr. 247, not of Engelm. 



Stout, much branched, the branches elongated, sparingly leafy, copi 

 ously floriferous, minutely scaberulous in lines : leaflets commonly oval, 

 obtuse or subtruncate, mucronulate, sometimes narrower and acute, 

 scaberulous along the midvein beneath: carpels short, usually obovoid 

 rather than pyriform, the longitudinal lines or ribs coarse but low and not 

 very salient, somewhat broken into an obscure reticulation at summit and 

 there, as it were, angled by 4 or 5 coarse and low tubercles. 



Interior of California, in dry sandy soil from about Tulare northward 

 to Sacramento; abundant about Lathrop ; totally distinct from the Texan 

 W. rcfracla. 



4. Wislizenia divaricata sp. nov. 



Glabrous, very widely and loosely branched, the branches from strongly 

 divergent to quite divaricate, stout, rigid, uncommonly naked-looking, the 

 scattered foliage small for the plant and all but the proper cauline leaves 

 unifoliolate, the leaflets cuneate-oblong, almost pungently acute, 1.5-2 

 cm. long: racemes many and elongated: fruit 5 mm. wide, the carpels 

 elongated pyriform, being constricted just above the base, marked longi 

 tudinally by a prominent narrow reticulation rather than by crowded and 

 unbroken lines, the summit crowned with a circle of about 5 low tubercles. 



Southern part of the Colorado Desert in San Diego County, California, 

 collected only by C. R. Orcutt, June 23, 1888, at Bonego Springs : distri 

 buted to National Herbarium under No. 1492. 



