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248 EXPLANATION OF THE PLATES.
Fig. 7. Hypericum ^gyptiacum. Hypericinece. Calyx
.5-p'^arted, corolla 5-petaled.
a. Bractese two.
Fig. 8. Robinia liispida. Leguminosce. Flower with a
papilionaceous or butterflylike corolla.
a. Calyx four-cut, irregular.
L The standard of the corolla.
c. The wings.
d. The keel.
Fig. 9. The same, having the calyx and corolla pulled
off, to show the diadelphous stamens, and magnified.
a. The tubular androphore, split longitudinally into nine
filaments at top.
L The single free stamen.
c. Stigma velvetty.
Fig. 10. Ilubus odoratus. Dryadea. Longitudinal
section of the flower to show the insertions.
a. Gynophore convex.
h. Stamens indefinite, perigynous.
Fig. 11. Polygala Heisteria. Polygalece. Calyx fiveparted,
lobes equal ; corolla monopetalous, irregular, twolipped,
split above, and rolled up into a tube at bottom.
fig. 12. The tubular androphore, split longitudinally,
embracing the pistill, and divided at top into seven short
filaments, bearing the anthers.
Fig. 13. Malva fragrans. MalvacecB. Flower polyanodrous,
monadelphous.
'Fig. 14. Linaria. Personatce. Calyx five-parted ; corolla
gaping, spurred at the base, limb 2-lipped; above 2-cut,
turned back, below 3-lobed; palate rather prominent in the
throat.
Fig. 15. Hypericum quadrangulare. Hypericinece. Calyx
5-cut, lobes uncut; petals 5; stamens indefinite, on three
androphores ;
styles three.
Fig. 16. Epipactis palustris. Orchidece. Ovary pedi-
celled, not twisted, pubescent; pei'igonium spread; lip
crenate, blunt, spurless, as long as the sepales, not clasping;
jhypochilium concavely bunched ; epichilium inwardly
2-bunched at the bottom.
Fig. 17. Selinum caruifolium. Umbelliferce. Flower
magnified. Petals five, bent in at the tip, and appearing
as if notched; stamens five, alternate; styles two.
Fig. 18. Corylus sylvestris. Corylidece. Male flowers
collected into a catkin.