VOL. II.] 



CARROT FAMILY. 



539 



41. AEGOPODIUM L. Sp. PI. 265. 1753. 



Perennial herbs, with i-2-ternate leaves, and compound umbels of white flowers. Bracts 

 of the involucre and involucels none, or rarely few and early deciduous. Calyx-teeth obso- 

 lete. Petals inflexed at the apex. Stylopodium thick, conic. Fruit ovate-oblong, glabrous, 

 somewhat compressed. Carpels obscurely 5-angled, the ribs slender, equal, distant; oil-tubes 

 none. [Greek, goat-foot.] 



One or perhaps two species, natives of temperate Europe and Asia. 



i. AEgopodium Podagraria L. Goutweed. Goutwort. Herb-Gerard. 



(Fig. 2702.) 



AEgopodium Podagraria L. Sp. PI. 



265- 1753- 



Erect, branched, glabrous, l}4-2}4 

 high. Basal and lower leaves long- 

 petioled, biternate, the primary divi- 

 sionsstalked, the segments ovate, acute, 

 or acuminate at the apex, rounded, or 

 cordate and often oblique at the base, 

 sharply serrulate, 1%'-$' long; upper 

 leaves similar but smaller and usually 

 simply ternate; umbels long-pedun- 

 cled, ij^ / -2j / broad, g-25-rayed; rays 

 i' long in fruit or more; pedicels 2"- 

 4" long; fruit about 2" long, scarcely 

 i" wide, the styles deflected. 



In waste places, Massachusetts to New 

 Jersey, Pennsylvania and Delaware. Ad- 

 ventive from Europe. Wild or English 

 Masterwort, Ax-Ash- or Aise -weed, Dwarf 

 or Bishop's Elder, Bishop's weed. June- 

 Aug. ; 



42. HYDROCOTYLE L. Sp. PI. 234. 1753. 



Perennial herbs, prostrate and commonly rooting at the joints, with palmately lobed or 

 veined, often peltate leaves, the bases of the petioles with 2 scale-like stipules, and small 

 white flowers in peduncled or sessile simple or proliferous umbels opposite the leaves. 

 Bracts of the involucre few and small, or none. Calyx-teeth minute. Petals entire. Disk 

 flat. Fruit laterally compressed, orbicular or broader than high. Carpels with 5 primary 

 ribs, the lateral ones usually curved; no large oil-tubes, but an oil-bearing layer of tissue 

 beneath the epidermis. [Greek, water-cup.] 



About 75 species of wide distribution. Besides the following another occurs in the Southwest 

 and on the Pacific Coast. The species are known as Marsh-, or Water- Pennywort, or Water-cup. 

 Leaves nearly orbicular, peltate. 



Umbels simple, rarely slightly proliferous; pedicels slender. i. H. umbellata. 



Umbels, at least some of them, proliferous; pedicels, or some of them, short. 



Fruit notched at each end. 2. H. Canbyi. 



Fruit not notched at either end. 3. H. verticillata. 



Leaves nearly orbicular, cordate, or reniform, not peltate. 



Leaves 5-9-! obed ; umbels nearly sessile. 4. H.Americana. 



Leaves 3~7-cleft; umbels long-peduncled. 5. H. ranunculoides. 



i. Hydrocotyle umbellata L. Umbellate or 



Many-flowered Marsh-Pennywort. 



(Fig. 2703.) 



Hydrocotyle umbellata L. Sp. PI. 234. 1753. 



Glabrous, stem creeping, several inches long, the 

 subterranean branches tuberiferous. Petioles slender, 

 erect, or ascending, i '-6' long; leaves peltate, orbicular, 

 or broader than long, sometimes cordate at the base, 

 Y^'-i' wide, crenately 7-u-lobed, the lobes broad, 

 not deep, mostly crenulate; peduncles elongated; 

 umbels simple or rarely with a proliferous extension; 

 pedicels slender, 2 // -6 // long; mature fruit notched at 

 both ends, i // -i^ // broad, not quite as long; interme- 

 diate ribs corky-thickened; dorsal rib obtuse. 



In swamps and low grounds, eastern Massachusetts to 

 Florida and the West Indies, Minnesota, Texas and Mexico. 

 Also in South America and South Africa. June-Sept. 



