ESCALLONIACEAE 505 
12. Heuchera longifldra Rydb. Foliage nearly glabrous except the leaf-blades. 
Stem 4-6 dm. tall, glandular-puberulent above, sometimes with a few scales: leaf-blades 
reniform or orbicular-reniform, 5-8 cm. broad, merely ciliate: hypanthium oblique, 
deeply campanulate, glandular-puberulent, gibbous on the shorter side: sepals oblong, 
obtuse: petals spatulate, with slender claws, purple at the apex, yellowish at the base, 
about equalling the sepals: stamens included. 
On hillsides, Kentucky and Tennessee. Spring. 
8. MITELLA L. 
Perennial herbs, with slender rootstocks. Stems scape-like. Leaves chiefly basal, with 
adnate stipules: blades membranous, toothed or lobed, long-petioled. Flowers white or 
greenish, in slender, interrupted, often secund racemes. Calyx persistent. Sepals 5, spread- 
ing, valvate. Petals 5, 3-cleft or pinnatifid, the segments hair-like. Stamens 10: filaments 
short: anthers reniform or cordate. Ovary superior, l-celled : styles 2, short: stigmas 
capitate. Ovules numerous, borne on parietal placentae. Capsule 1-celled, 2-valved. 
Seeds numerous with a smooth and shining testa. MrrREWORT. 
1. Mitella diphylla L. Leaves basal; blades thin, ovate to orbicular-ovate in out- 
line, 3—5-lobed, 3-8 cm. broad, sparingly pubescent on both sides, cordate, the lobes cre- 
nate, obtuse, except the terminal one ; petioles erect or nearly so, pubescent with retrorse 
hairs, much longer than the blades: scapes solitary or several together, 2-4 dm. tall, 
simple, 2-bracted above the middle: bracts opposite, ovate, crenate or 3-lobed, sessile, 
smaller than the leaves: inflorescence finely glandular-pubescent : raceme 4-15 cm. long : 
pedicels 1-2 mm. long: hypanthium campanulate, 3 mm. broad: sepals ovate, about as 
long as the hypanthium, obtuse: petals 2.5-3 mm. long, pinnatifid, the segments subulate : 
capsule flattened, broader than high, minutely pubescent, 2-beaked, 2-valved at the apex. 
in woods, Quebec to Minnesota, North Carolina and Missouri. Spring. BisHop’s CAP. 
9. CHRYSOSPLENIUM L. 
Annual or perennial, often fleshy, diminutive herbs. Stems erect or creeping. Leaves 
alternate or opposite, without stipules: blades crenate or lobed. Flowers green, axillary 
or terminal, solitary or several together. Calyx persistent. Sepals 4 or 5, imbricated. 
Petals wanting. Stamens 8-10 or rarely 4, inserted on the margin of the epigynous disk : 
filaments short. Ovary inferior, 1-celled, 2-3-lobed above: styles 2, recurved. Ovules 
numerous, borne on 2 or rarely 3 parietal placentae. Capsule membranous, unequally 
2-lobed above. Seeds with a smooth or papillose, sometimes pubescent testa. GOLDEN 
SAXIFRAGE. WATER-CARPET. 
1. Chrysosplenium Americànum Schwein. Perennial, glabrous, bright green. 
Stems prostrate or decumbent, 2-20 cm. long, creeping: leaves mainly opposite; blades 
suborbicular to orbicular-reniform, 0.5-1.5 cm. broad, crenate or nearly entire, commonly 
truncate at the base ; petioles much shorter than the blades: flowers axillary, about 3 mm. 
broad, yellowish, sometimes tinged with purple: sepals 4, ovate, becoming reniform, ob- 
tuse : petals wanting: stamens erect, commonly 4: anthers orange-red: capsule 3 mm. 
high, with two inflated lobes each tipped by a divergent beak: seeds 0.7 mm. broad, 
minutely pubescent. 
In brooks or wet shady places, Nova Scotia to Saskatehewan, Ohio and on or near the mountains 
to Georgia. Spring. . 
FAMILY 6. ESCALLONIACEAE Dumort. HYDRANGEA FAMILY. . 
Shrubs or trees, or sometimes vines. Leaves mostly opposite : blades sim- 
ple, often toothed. Flowers commonly perfect, in raceme-like or panicled 
cymes. Calyx of mostly 4—10 small sepals surmounting the often ribbed hypan- 
thium, in sterile flowers often conspicuously enlarged. Corolla of 4-10 petals 
valvate or convolute in the bud. Androecium of 8-many stamens. Filaments 
subulate or linear. Gynoecium of 2-5 united carpels. Styles rarely united. 
Ovules numerous, anatropous. Fruit capsular, sometimes opening through the 
sides. Seeds numerous. 
Stamens 8-12, 1. HYDRANGEA. 
Stamens 2040. 
Upright shrubs: styles distinct or rarely united: capsules 3-5-celled. 2. PHILADELPHUS. 
ines : styles united : capsules 5-10-celled. 3. DECUMARIA. 
