HYDROPHYLLACE^. 55 



N. racemosa, Nutt. More slender than N. aurita, leaves shorter, nearly ovate in 

 outline with fewer divisions and petiole not winged or with clasping base: flowers half 

 as large. San Diego. 



PHACELIA. 



1. Euphacelia. 



P. Circinata is P. Californica in Ray-Reg. Bot. Probably the correct name. 



P. imbricata, Greene. (Next to P. circinata). Densely leafy at base: panicle of 

 racemes in pairs, long and lax, the branches widely spreading: fruiting calyces com- 

 pressed and closely imbricated; sepals .unequal, the outer and larger deltoid-ovate, the 

 others ovate oblong and ciliate. 



P. nemoralis, Greene. Stout, erect, rather widely branching, 2-4 feet high, rough 

 with stinging hairs, leaves simple or with a pair (rarely 2 pairs) of small leaflets at the 

 base: pods 2-seeded. 



P. sauveolans, Greene. Annual, branching from the base: soft, hairy and viscid, 

 sweet scented: stem leaves oval, coarsely-toothed an inch long on slender petioles of 

 nearly equal length, the lower leaves with some lyrate lobes at the base of the blade, 

 corolla bright blue funnel-form, 6 lines long, 3 lines broad: sepals spatulate, 3 lines 

 long. Sonoma Co. 



P. Eisenii, Brandegee. Annual, short, hairy, branching from the base 3-5 inches 

 high: leaves 6-10 lines long on petioles as long, elliptic-oblo.ng, simple or with a few 

 basal lobes; flowers on slender pedicels twice their length: corolla about three lines 

 long: stamens included: styles distinct. Fresno Co. Dr. Gustav Eisen. 



P. virgata, Greene. Stout, strictly erect. 2-3 feet high, leafy at base and to the 

 middle, thence virgate-racemose: stem covered with a dense plushy coat of short hairs, 

 with a sparse growth of bristly hairs: leaves pinnately divided into 2-3 pairs of lobes, a 

 third the length of the terminal elliptic-lanceolate segment, appressed hairy: corolla 

 small, dull yellowish: pod 2-seeded. 



P. leptostachya, Greene. Annual, stout, widely branching, the branches often 2 

 feet long, roughish with a sparse growth of brownish hairs, slightly viscid: leaves ample, 

 the lowest tripinnatifid: spikes usually solitary at intervals throughout the plant, in 

 fruit 5-6 inches long: sepals spatulate, one much longer and twice as wide at the tip as 

 the others: corolla small, little surpassing the calyx, dingy greenish white: stamens 

 much exserted. This species has heretofore been called P. distans or P. tanacetifolia. 

 Prof. Greene in Erythea. Vol. II. p. 191, thus distinguishes these two species: "True P. 

 distans is one of the commonest and most widely dispersed of Calif ornian Phacelias. 

 Its stern is more densely and quite retrorsely hispid. Its spikes are short and collected 

 at or near the ends of the many branches in pairs or several together. Its corolla is 



