. Gray's new manual of botany. A handbook of the flowering plants and ferns of the central and northeastern United States and adjacent Canada. Botany. §2- Nutlets conspicuously winged, each raised on a slender base. 8. nerTosa. Ad upper node x ^ Nutlet X 5. 12. S. nerybsa Pursh. Smooth, simple or branched, slender, dm. high ; lower leaves roundish, the middle ovate, toothed, somewhat heart-shaped, cm. long, the floral ovate-lanceolate, entire ; nerve-like veins prominent beneath ; corolla bluish, 1 cm. long, the lower lip exceeding the concave upper one. — Moist thickets and rich w


. Gray's new manual of botany. A handbook of the flowering plants and ferns of the central and northeastern United States and adjacent Canada. Botany. §2- Nutlets conspicuously winged, each raised on a slender base. 8. nerTosa. Ad upper node x ^ Nutlet X 5. 12. S. nerybsa Pursh. Smooth, simple or branched, slender, dm. high ; lower leaves roundish, the middle ovate, toothed, somewhat heart-shaped, cm. long, the floral ovate-lanceolate, entire ; nerve-like veins prominent beneath ; corolla bluish, 1 cm. long, the lower lip exceeding the concave upper one. — Moist thickets and rich woods, s. Ont. and N. Y. to Mo. and N. C. Fig. 888. 6. MARRtrBIUM [Toum.] L. Horehound Calyx-teeth more or less spiny-pointed and spreading at maturity. TTpper lip of the corolla erect, notched, the lower spreading, 3-cleft, its middle lobe broadest. Stamens 4. — Whitish-woolly bitter-aromatic perennials, branched at the base, with rugose and crenate or cut leaves, and many-flowered axillary whorls. (A name used by Pliny, from the Hebrew marrob, a bitter juice.) 1. M. vuLoiKE L. (Common H.) Stems ascend- ing ; leaves round-ovate, petioled, crenate-toothed ; whorls capitate; calyx with 10 recurved teeth, the alternate ones shorter ; corolla small, white. — Waste places, Me. to Ont., westw. and southw. June-Aug. (Nat. from Eu.) Fi&. 889. ®. M. vnlg^are. Node X %. Fruiting calyx x 2, 7. AGAsTACHE Clayt. Giant Hyssop Calyx tubular-bell-shaped, 15-nerved, oblique, 5-toothed, the upper teeth rather longer than the others. Upper lip of corolla nearly erect, 2-lobed, the lower 3-clett, with the middle lobe crenate. Stamens 4, exserted; the upper pair declined, the lower and shorter pair ascending, so that the pairs cross; anther-cells nearly parallel. — Perennial tall herbs, with petioled serrate leaves, and small flowers crowded in interrupted terminal spikes in summer. (From fiya;', much, and o-rdxi's, an ear of corn, in reference to the numerous spikes.) Lo- PHANTHUS Be


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