HYDRANGEACEAE (HYDRANGEA FAMILY) 243 



mm. long, about equaling the glandular pedicels: calyx-tube cylindrical, 

 10-12 mm. long, abruptly inflated above its union with the ovary, twice as 

 long as the oblong lobes: petals oblong, rounded at the summit, about half as 

 long as the lobes of the calyx: styles smooth, 2-cleft at the apex about 

 equaling the short included stamens: fruit ovoid, black, viscid-pubescent. 

 In the mountains; from our range to the Pacific States. 



10. Ribes Hudsonianum Richards, Frank. Journ. Ed. 2: 6. 1823. Stems 

 erect, 10-18 dm. high: leaves rounded-cordate in outline, 5-19 cm. in diam- 

 eter, smooth above, resinous-dotted beneath, 3-5-lobed; the lobes acute, 

 coarsely and doubly serrate: racemes erect, with or without a few small 

 leaves at base, 5-10 cm. long, many-flowered; bracts setaceous, much shorter 

 than the pedicels: calyx campanulate, deeply 5-parted, the oblong obtuse 

 lobes 2-3 mm. long: petals oblong, minute: style glabrous, deeply cleft: fruit 

 globose, resinous-dotted. (R. petiolare Dougl. in Trans. Hort. Soc. 7: 514. 

 1830, seems to be merely the more glabrous form of this species.) Wyoming 

 and across the continent northward. 



11. Ribes americanum Mill. Card. Diet.' Ed. 8. No. 4. 1868. Branches 

 erect: petioles slender; leaves nearly orbicular, glabrous above, somewhat 

 pubescent and resinous-dotted beneath, 3-8 cm. wide, sharply 3-5-lobed; 

 the lobes dentate-serrate, acutish: bractlets linear, much exceeding the ped- 

 icels, or shorter; flowers greenish- white, 8-10 mm. long: calyx-lobes short, 

 broad, obtuse: stamens not exserted: fruit globose-ovoid, about 6 mm. in 

 diameter. (R. floridum L'Her. Stirp. Nov. 1: 4. 1785.) In wet woods; from 

 Nova Scotia to the Rocky Mountains. 



12. Ribes cereum Dougl. Trans. Hort. Soc. 7: 512. 1830. A variable rigid 

 intricately branched shrub, 1-2 m. high: petioles more or less glandular- 

 pubescent, 6-20 mm. long: leaves reniform-orbicular, cordate at the base, 

 1-4 cm. wide, sparingly glandular-pubescent, or glabrate on both sides, 

 3-5-lobed; the lobes obtuse, crenate or crenulate: racemes short, pubescent, 

 pendulous; bractlets persistent; flowers sessile or short-pediceled, pink or 

 greenish- white: calyx dilated at the base: petals minute, nearly orbicular: 

 stamens short: fruit insipid, about 6 mm. in diameter, red, often glandular- 

 pubescent. (The species is variable, and the following are othe'r described 

 forms: R. pumilum Nutt. T. & G. Fl. 1: 551. 1840; R. inebrians Lindl. Bot. 

 Reg. t. 1471.) Throughout the Rocky Mountains and west to the coast States. 



13. Ribes longiflorum Nutt. Ker. Bot. Reg. 2: pi. 125. 1816. A smooth 

 shrub, 1-3 m. high: petioles slender, pubescent, at least when young; leaves 

 pubescent and ciliate, or at length glabrous and shining, often broader than 

 long, thick, 3-lobed or sometimes 5-lobed, broadly cuneate or truncate at the 

 base, the lobes obtuse: racemes leafy-bracted, few-flowered; flowers golden- 

 yellow, spicy-scented, 12-25 mm. long: calyx-tube cylindric, glabrous, 3-4 

 tunes as long as the oval spreading lobes: stamens slightly exserted: fruit 

 black, glabrous, 6-10 mm. in diameter. R. aureum, which name is now re- 

 stricted to the plant of the Columbia watershed. In our range, among other 

 forms, there is one which well deserves a horticultural name. Its fruit is 

 large, yellowish-red, juicy, well-flavored, and highly prized. (The MISSOURI or 

 GOLDEN CURRANT.) Throughout the trans-Missouri country. 



53. HYDRANGEACEAE DUMORT. HYDRANGEA FAMILY 



Mostly shrubs with simple opposite exstipulate leaves and usually perfect 

 flowers, solitary or cymose. Sepals and petals 5. Stamens twice as many 

 or numerous, epigynous. Carpels 2-10, wholly united or the apex free, ad- 

 nate below (at least) to the inclosing calyx-tube. Seeds numerous. Saxi- 

 fragaceae in part. 



Stamens more than 10; ovary inferior . . . . . . .1. Philadelphus. 



Stamens 10 or fewer; ovary partly superior. 



Cymes many-flowered; leaves serrate ....... 2. Jamesia. 



Cymes 1-3-flowered; leaves entire 3. Fendlera. 



