OF ARTS AND SCIENCES : JUNE H, 1867. 385 



vel retrocurvo eaque tluplo longiore. — Swamps In the Sierra Nevada, 

 alt. 6 - 1 1,000 feet, Brewer, Torrey, Bolander, Bridges (193). A well- 

 marked and interesting addition to this section. Flowers about half 

 the size of those of P. Grcenlandica or surrecta; the linear rostrum 

 barely 3 lines long, thrown abruptly back over the galea and erect 

 or recurved. Capsule ovate, twice the length of the calyx. 



Pedicularis SEMiB areata : Edentulce, subacaulis, fere glabra ; 

 foliis pinnatipartitis, segmentis inciso- 1 - 2-pinnatifidis, lobis dentibus- 

 que brevibus mucronatis ; floribus breviter pedicellatis folioso-bracteatis 

 in spicam subsessilem foliis multum brevioribus congestis ; calyce sub- 

 in?equaliter 5-fido, lobis e basi lata lanceolato-acuminatis ; corolla 

 ochroleuca (primum tomentulosa) calyce triple longiore, galea fere recta 

 obtusa inappendiculata labio erecto apice breviter a^quahter trilobo 

 paullo longiore ; filaments 2 longioribus supra medium pilis multiarticu- 

 latis villosis, brevioribus fere vel prorsus imberbibus ; antherse loculis 

 basi breviter cuspidatis. — On Mount Dana, alt. 10,000 feet, and Eb- 

 bett's Pass, 7 - 8,000 feet, Prof. Brewer. In or near the Yoseniite 

 Valley, Bolander, and Mariposa Grove, at and above 5,000 feet. Al- 

 lied rather to P. centranthera, Gray, than to any other ; the habit, foli- 

 age, and inflorescence similar, but the leaves more divided, only 3 or 4 

 inches long, and with seldom a trace of callous margins ; the flower 

 much smaller, only 7 to 9 lines long ; the anthers much shorter and 

 abruptly pointed. Capsule globular, obliquely mucronate, hardly 

 equalling the calyx. 



MoNARDELLA LEUCOCEPHALA : annua, humilis, cinereo-puberula ; 

 foliis oblongis vel sublanceolatis obtusis integerrimis subpetiolatis ; in- 

 volucri bi'acteis ex toto albo-scai'iosis nitidis rotundatis 7 - 9-nervatis 

 subapiculatis flores (pro genere parvos) adjequantibus ; calycis brevius- 

 cule tubulosi dentibus subulatis supra medium albis tubo 15-nervi 

 dimidio brevioribus ; corolla parva. — Plains near Merced, in sandy 

 soil, June. Heads numerous, terminating the spreading branches, about 

 two thirds of an inch in diameter. The slender white tips of the calyx- 

 teeth more or less recurved. Corolla apparently white and but little 

 exserted. From the very white and probably enduring involucres of 

 the numerous heads, and the dwarf habit, this marked species may be 

 expected to be a fine ornamental annual in cultivation. — The other 

 annual species are M. Douglasii, differing from the others in the widely 

 divergent pinnate veins of the involucral bracts confluent into a strong 

 marginal false vein ; M. candicans, with very blunt calyx'teeth as well 



VOL. VII. 49 



