457 



Suksdorfii; it begins with the original description* and ends with 

 its union to Oxalis corniculata var, (?) macrant]ia;\ as in the case of 

 its sister species. 



Mr. Nuttall collected his type in " Woods around St. Barbara, 

 California," as is shown by his description and the label accom- 

 panying the type. The original specimen is sufficient to mark it 

 as a very distinct species, and to support this I found an ample 

 specimen preserved in the Torrey herbarium, which agrees with 

 Nuttall's type in every particular. This second specimen consists 

 of two plants which were collected in the "Valley of the Sacra- 

 mento, California," by Dr. Stillman. 



The gross characters which separate Oxalis pilosa from Oxalu 

 Suksdorfii are habit, the densely pale pilose pubescence found 

 on the stems, petioles, peduncles and pedicels, and the longer col- 

 umnar pods. The species doubtlesss occurs in many herbaria. I 

 give the following description : 



Oxalis pilosa Nutt; T. & G. Fl. N. A. i : 212. 1838. 



Perennial by a woody base, caulescent, stoutish, densely pilose 

 throughout, pale green. Stem erect, ascending, or decumbent, 

 1-3 dm. long, usually simple, woody below; leaves peltately 3-fol- 

 iolate, 1-2 cm. broad, pilose on both sides; petioles slender, 2-6 

 cm. long, with narrow dilated stipules ; leaflets mostly broader 

 than long, sharply notched at the apex, ciliate, the lobes equal or 

 nearly so ; peduncles stoutish, surpassing the subtending leaves, 

 topped by 1-3 umbellate-cymose pedicels which are subtended by 

 linear-subulate bracts ; flowers yellow, nearly 2 cm. broad, rarely 

 solitary; sepals ovate-lanceolate or oblong-lanceolate, 4-5 mm. 

 long, obtuse, pilose; petals obovate, notched, 12-15 mm. long; 

 filaments pilose; capsule columnar, 1.4-1.7 cm. long, abruptly 

 pointed, tipped by the spreading style-tips, clothed by a minute 

 gray pubescence, commonly longer than the reflexed pedicels ; 

 seed obovoid, 1.5 mm. long, marked with slightly interrupted 

 transverse ridges. 



California, from the Valley of the Sacramento to Santa Barbara. 



*T. & G. FLN. A. i: 212, ♦ 



I Mem. Bot. Soc. Nat. Hist. 4 : %%. 



