70 ERYTHEA. 
14 inches long, only ? inch broad, not cruciform, the petals 
diverging in pairs: anthers slenderly sagittate, the 4 longer 
ones exserted: pods long, slender, almost spreading, the cross- 
section sharply rhombic. 
A large plant of the hills of the Mt. Diablo Range, Cali- 
fornia, growing only on open grassy summits; the pale 
flowers large and delightfully fragrant. It can hardly be the 
E. grandiflorum, Nutt., which is to be sought at Monterey, 
but which is unknown to Californian botanists of recent 
times. 
Ribes Wilsonianum. Rigid and low shrub, with smooth 
branchlets and 1 to 3 spines at each node: growing parts and 
leaves more or less villous with a short pubescence: leaves 
small, rounded, 5-lobed, the lobes and teeth acute: peduncles 
rather slender, mostly 3-flowered: bracts persistent, broadly 
ovate, acuminate-cuspidate, villous: ovary short-prickly, 
searcely villous: calyx dark red, the cylindric or slightly 
funnelform tube 3 lines long; segments acute, about as long: 
petals scarcely a line long, thinnish, white with red veins, 
cuneate-quadrate, nearly truncate and scarcely erose at apex, 
and with narrow and abruptly inflexed margins: filaments 
scarcely equalling the petals; anthers connivent, with prom- 
inent cusp bent outwards. 
This has been grown for two seasons in the Botanic 
Garden at Berkeley, the living shrub having been sent from 
the mountains of Kern Co., Calif., in 1893, by Norman C. 
Wilson. Herbarium specimens of the same, I had, in the 
Flora Franeiscana, referred to R. amictum; but the living 
plant is of very different aspect, and the floral characters of 
the new species are excellent. 
Mentzelia Nelsonii. Annual, 2 or 3 feet high, freel 
and widely branching, the stoutish branches with a sparingly 
hispidulous whitish bark: lower leaves unknown, those of 
the branches from distinctly hastate-ovate to almost deltoid- 
ovate, 1 or 2 inches long, coarsely toothed or not indistinctly 
lobed, both faces green and rather sparsely appressed- 
