Order III. 
HEXANDRIA TRIGYNIA. 
295 
5014 Valves veiny toothed grained, Lower leaves cordate oblong, upper oval, all with colored veins 
5015 Valves toothed one grained. Leaves ovate lanceolate repand entire 
5016 Like R. persicarioides but differing in having auricled leaves and longer teeth to the valves 
\ 2. Hermaphrodite. Valves naked. 
5017 Valves entire, Leaves cordate smooth acute 
5018 Valves toothed, Flower-stalks flat reflexed thickened 
5019 Valves smooth, Stem shrubby. Leaves cordate 
5020 Flowers in pairs, All the valves very large membranous reflexed. Leaves undivided 
5021 Flowers distinct. Wing of one valve very large membranous veiny. Leaves eroded 
5022 Flowers distinct. Valves cordate obtuse entire, Leaves hastate-ovate 
5023 Leaves cordate hastate 
5024 Stem shrubby. Root tuberous, Leaves roundish running down into the stalk 
5025 Valves entire reniform. Leaves hastate, Middle lobe cordate. Stem much branched diffuse 
§ 3. Flowers dioecious. 
5026 Valves entire naked,, Leaves cordate obtuse rugose 
5027 Leaves lanceolate stalked, Fruit reflexed. Valves fringed 
5028 Female calyx 1-leaved, Outer valves reflexed hooked 
5029 Flowers monoecious. Valves naked. Leaves oblong ovate 
5030 Leaves lanceolate sagittate. Lobes spreading 
5031 Leaves oblong sagittate 
5032 Leaves lanceolate hastate 
5033 Leaves stalked hastate serrated acute with simple spreading auricles, Valves naked entire 
5034 Leaves sagittate reniform 
POLYGYNIA. 
5035 Leaves alternate stalked cordate ovate with a glandular point 
5036 Leaves cordate 
5037 Fruit 8-cleft, Leaves 3-nerved 
50S8 Leaves cordate oblong. Fruit 6-cleft 
5039 Leaves ovate acute, Capsules bluntly 3-cornered 
5040 Leaves lanceolate 
5041 Leaves oval cordate 9-nerved 
5042 Leaves elliptical obtuse, Capsules striated 
5043 Leaves linear-lanceolate. Capsules 5-cornered incurved 
and Miscellaneous Particulars. 
root left will generate buds and send them to the surface, and if the plough or spade cut a root into pieces an 
inch long, each piece will grow, whether near the surface or buried to some depth. The less careful agricul- 
turist often receives dock-seeds with his grass-seeds, brought from the stable-keepers and not properly cleaned : 
these come up the first year, and establish themselves along with the clover unobserved. The second year 
they flower, and if the crop is not early cut the seed ripens, and in using the hay is either mixed with the litter 
of the stable or with the hay-seeds, to be again carried to the field. Such as purchase town-manure cannot 
avoid receiving dock-seeds ; but they may destroy them by fermenting the manure well before using it : 
others, who desire to get rid and keep clear of this weed, should be most particular in their choice of seeds 
of every kind, especially of grass-seeds ; should weed them out as soon as they can be discovered ; and, for such 
as remain till the second year, they may be pulled by hand when in the flower-stalk, and during or after a 
day^ rain. (See Encyc. Agr. art. Feren. Weeds.) 
857. Oxyria. From o|y?, acid, in allusion to the qualities of its leaves. The plant is one of those singular 
individuals which has the character of two distinct genera, and yet is referable to neither. Wahlenberg made 
it a Rheum, Linnaus a Rumex, Mr. Brown what it now is. It was formerly used as a salad. 
St)8. Wendlandia. Named in honor of J. C. Wendland, a German botanist. He has published various 
works upon plants, many of them illustrated with numerous colored figures. This is a climbing plant, referred 
by DecandoUe to Cocculus. 
859. Damasonium. From lai^(x.oo, to take away or diminish. This plant had the reputation of removing 
the effects of the venom of the sea-dog. Handsome floating aquatics. 
860. Actinocarpus. From a««v, a ray, and zix,p'xo;, fruit, in allusion to the radiate disposition of the little 
carpella round a common axis. Pretty floating aquatics. 
861. Alisma. Derived from alis, water, in Celtic. Alisma Plantago grows in watery places, and is called 
water.plantain, from the resemblance between its leaf and that of the common plantain. 
U 4 
