Ord. 1.] DIDYNAMIA GYMNOSPERMIA. 119 



281. HELLeBORUS. Hellebore. 



1. H. viridis, 3. 200. (Green H.) Stem many-flowered, leafy. 



Leaves digitate. Petals spreading. 

 Woods, on a chalky soil : wild ? If. 4. L. bright green. Fl. green. 



2. H.fcetidus, 9. 613. (Stinking H.) Stein many-flowered, leafy. 



Leaves pedate. Petals converging. 

 Thickets : native ? If. . 3, 4. L. dark green. Pet. purple-edged. 



282. CA.LTHA. Marsh-marigold. 



1. C. patustris, 8. 50G. (Common M.) Stem erect. Leaves heart- 



shaped, rounded. 

 Marshy pi. 1/.. 5. Smooth. L. bluntly notched. Fl. large, yellow. 



2. C. radicans, 31. 2175. (Creeping M.) Stem reclining, creeping. 



Leaves triangular, somewhat heart-shaped, sharply crenate. 

 Marshy pi. in Scot. If. G. Smaller. Ft. small A var. o/C. palust. 



Class XIV. DIDYNAMIA. Stamens 4, 



2 outermost longest. 



Order I. GYMNOSPERMIA. Seeds naked, 4 at most. 



All the Genera, except Verbena, belong to the N.O. Labiate. 



[The plants of this Ord. are mostly herbaceous. Stems quadrang. 

 L. opp. Fl. all complete and perf., mostly in whorls. Cal. of 1 pet., 

 ringent, or lipped. Qualities aromatic, or bitter, always harmless.] 



* Calyx in 5 segments, nearly regular. 



296. LEONuRUS. Anther incumbent, besprinkled with hard 

 granulations. Upper lip of the corolla shaggy. 



288. GLECHoMA. Anth. converging crosswise in pairs. Upper lip 



cloven. 

 287. MENTHA. Filaments spreading widely, straight. Cor. nearly 



equal. 

 284. TEuCRIUM. Upper lip of the cor. in 2 very deep, remote, 



lateral lobes. 

 283. AJuGA. Upper lip minute, abrupt, notched. 



292. BEToNICA. Upper lip nearly flat, ascending; tube cylindri- 



cal, incurved. Stam. not longer than the throat. 



289. LA.MIUM. Cor. toothed at each side of the throat. 



290. GALEoPSlS. Lower lip of the cor. with 2 hollow prominences 



at the base in front. 



291. GALEoBDOLON. Loiver lip in 3 acute, undivided segments. 



293. STaCH YS. Lower lip with reflexed lateral lobes. Stam. finally 



spreading outwards at each side. 



