557 
PL ex. cal. 55. HALORAGiE. 340. Myriophyl. 
III. 340. MYRIOPHYLLUM. Dioscor. Water-milfoil. 
Plant monoicous ; calyx 4-parted. — M ale. Stamens 8. — 
Fem. Ovary 4-celled ; stigmata sessile, four-toothed. — 
Leaves whirled, many-parted, lobes linear; flowers axil- 
lary, spiked; upper flowers male; lower female. 
1. Myriophyllum spicatum. Spiked tvater-milfoil. 
Leaves 4 in a whirl ; male flowers interruptedly spiked, 
leafless ; female flowers axillary ; stigmata villous. 
Potamogiton foliis pennatis, Ruii Syn. 150, 17. 
Millefolium aquaticum pennatum spicatum, Park. 1257. 
Myriophyllum spicatum, Lin. S. P. 1409. 
Feathered pond-vceed. 
Ditches and ponds; perennial; July and August. 
Herb floating; stem branched, comb-like; spike single; 
IractecR ovate, not cut, 4 to each whirl; male flower reddish. 
0. minus. Plant small. 
Potamogiton q. Millefolium aquaticum pennatum minus, folio! is singu- 
laribus latiusculis flosculis subjectis donatum, Dillen in Raii Syn. 151, 18. 
2. Myriophyllum verticillatum. Whirled water-milfoil. 
Leaves 5 in a whirl; flowers all axillary, whirled; stig- 
mata thick, feathered at the tip. 
Pentapterophyllon aquaticum flosculis ad foliorum nodos, Raii Syn 
316, 1. 
Millefolium aquaticum minus, Ger. em. 827, 6; Park. 1257. 
Myriophyllum verticillatum, Lin.S. P. 1410. 
Ditches and ponds ; perennial ; July. 
Herb floating ; twigs upright, leafed to the top ; upper 
leaves smallest ; flowers rarely hermaphrodite. 
Fam. XXI. 56. ONAGRARLE. Jussieu. 
Calyx adherent, 2 or 4-parted; petals 2 or 4, on the 
top of the calyx ; stamens 2, 4, or 8, alternating with the 
petals ; style 1 ; stigmata 2 or 4 ; ovary 2 or 4-celled ; 
ovules many, on a central placentarium, or 1 at the bottom 
of each cell ; perisperm 0, or very thin ; corculum straight, 
central; radicle below. — Plant herbaceous; leaves alter- 
nate or opposite; flowers racemose or axillary. 
Stamens 2; petals 2; carcerule 2 -seeded Circ^a. 341. 
Siam. 8; petals 4, upright, regular; 
capsule 4-celled ; seeds naked CEnothera. 342. 
Stam. 8, declining; pet. 4, irregular; 
capsule 4-celled; seeds comose Cham^eneriom. 343, 
Stam. 8, upright ; pet. 4, regular ; 
capsule 4-celled ; seeds comose Epilobium. 344, 
