Nevada, Utah, and Artzonn. 67 



Arctomecon humile sp. iiov. 



Ill LS74 Dr. C. C. Parry collected in the vicinity •)f 8t. George, 

 Utah, an Arctomecon, which Dr. Gray referred* to A. califor- 

 nicimi. The material now in hand shows that it is distinct hoth 

 from the original plant of Fremont and from the species just 

 described. It differs from the former in its smaller size through- 

 out, less hairy leaves, fewer flower parts, white petals, dilated 

 tilaments, and the presence of a style ; from A. merriami in its 

 smaller size and more scant}' hairs, more than 1-flowered pe- 

 duncles, fewer flower parts, persistent petals, and obovate, sev- 

 eral times shorter capsule. 



Type specimen in the Harvard Herbarium. 



The genera C^nhija and Arctomecon are describedt as distin- 

 guishable by their stigmas ; in the former opposite the jdacenta?, 

 in the latter opposite the valves. In Arctomecon merriami the 

 capitate stigma is evidently made up of as many parts or lobes 

 as there are placent[B, and each of these parts is directly opposite 

 a valve. Along both lateral margins of each lobe are stigmatic 

 lines, and the union of the two contiguous ones, of adjacent 

 lobes, makes a stigmatic line opposite the placenta. There is 

 nothing in Canbya to show that the stigmatic line, which is there 

 also opposite the placenta, was not derived in the same way ; 

 yet the two genera are sufficiently characterized by their gen- 

 eral differences. 



Arsnaria compacta sp. iiov. 



Stems compacted into a dense mat from a thick, woody, 

 many-branched caudex,the densely leafy lower portion 1 cm. or 

 less high ; flowering stems scantily leafy, sparingly c^aiiosely 

 branched, 5 cm. or less high, clothed with short glandular hairs ; 

 leaves awl-shaped, triangular in cross-section, pungent, glandular- 

 ciliate, 5 mm. or less long, squarrose ; those of the flowering stems 

 similar, usualh' glandular-hairy on the back, erect, passing into 

 scarious bracts above ; flowers single, terminating simple stems, 

 or in open few-flowered cymes ; sepals 5, 2.5 to 3.5 mm. long, 

 ovate to ovate-lanceolate, scarious-margined, with a thick green 

 midrib excurrent into a point ; petals 5 or G, oblong-oblanceolate, 

 broadly obtuse ; stamens 10 to 12 ; styles o or 4. 



* Proc. Amev. Acad. Sci., XII, 1877, 5;^, pi. II. 

 t Idem, XII, 1877, 52, and XXII, 1887, 270. 



