CALIFORNIA.— SUPPLEMENT. 
343 
hutnillimo foliis radicalibus lanceolatis longe petiolatis dentato-pinnatifidis multo breviore, 
calycis tubo longissimo, capsula oblongo-cylindracea obscure tetragona. 
Hab. Near the Blue Mountains, and about the Salmon Falls of the Snake River, Snake Country. Mr 
I'olmie. — The flowers are large and handsome ; the tube about as long as the radical leaves. 
12. Q^. (Euoenothera) odorata. Jacq.f 
The leaves are rather more hairy than usual ; but we perceive no essential difference. 
1. Gaura (Spach) decorticans; glabra basi fruticosa, foliis lineari-lanceolatis utrinque 
attenuatis dentatis, junioribus pubescentibus, spicis bracteatis laxis brevibus obtusissimis, 
ovario longe subulato subpubescente, calycis tubo ovario 2-3-plo breviore lacinias petala- 
que eequantibus, stigmate subgloboso 4-lobo. 
The bark is a shining white, with a reddish tinge, and readily peels off from the stem. Leaves two to 
three inches long. Bracteas leafy, linear, shorter than the subulate germen. Petals 4, somewhat unilateral. 
Style longer than the stamens. The spike, while one or two of the lower flowers only are open, is broad 
and very obtuse, and resembles the raceme of a Diplotaxis. 
Ord. XXL SALICARIE^. De Cand. 
1. Ly thrum lineare. Linn. 
Ord, XXII. LOASE.33. Juss. 
1. Bartonia IcBvicaulis. Dougl. in Hook. FI. Bor. Am. \. p. 221. t. 69. 
2. B. aurea. Lindl. in Bot. Reg. t. 1831. Hook. Bot. Mag. t. 3649. 
3. B. micrantha ; tota pilis brevibus hispida, caule'erecto dichotomo albescente, foliis 
ovatis acuminatis basi cuneatis sessilibus sinuato-pinnatifidis, floribus glomeratis folio 
florali brevioribus ebracteatis, petalis 5 ovatis segmenta calycina superantibus, staminibus 
15-20, 5 petaloideis apice emarginatis, capsula oblongo-cylindracea 3-sperma apice tri- 
valvi, stylo leviter spiraliter torto — (Tab. LXXXV.) 
The hairs are jointed, and some of them, particularly those on the pedicels and branchlets near the flowers, 
are spinulose at the joints ; the spines verticillate and reflexed. This plant has quite the habit of Mentzelia. 
especially in the broad foliage and few-seeded fruit, and the B. albicaulis tends to unite Acrolasia of Presl 
again to Bartonia ; indeed we scarcely find a single character left to distinguish that genus. None of the 
species can be said to have more than 5 petals : B. ornata. has 5 sterile petaloid stamens ; B. IcBvicaulis, 
pa7‘viJlora,micrantJia,2caA probably also jB. nuda, have the petaloid stamens antheriferous ; while .B. albicaulis, 
aurea, and Acrolasia Bartonoides are destitute of the petaloid stamens. In B. ornata, laevicaulis, and some 
others, the stamens are very numerous ; in B. albicaulis there are about 30 ; in B. micrantha not more than 
20 ; and in Acrolasia, 10. The seeds in most of the species are very numerous ; in B. albicaulis fewer ; but 
in B. micrantha, and in Acrolasia they are reduced by abortion to one to each placenta, placed in the cap- 
sule one above the other. The only difference then between Acrolasia and Bartonia lies in. the style of the 
former not being twisted, and spirally twisted in the latter ; but that character again is weakened by our present 
species, for here the style is so slightly twisted as scarcely to be perceptibly so. From Bartonia we do not see 
how Mentzelia can well be distinguished. Kunth’s two species have 10 petaloid fertile outer stamens ; M. 
hispida 10 outer subulate stamens, longer than the others ; while in M. aspera and oligosperma they are 
