342 
Urticaceie. 
96. Urticacese. 
505. Urtica. Nettle. XXI, 34. XXII, 30. 
1. PI. 15—30 cm, ann., monoecious (male and fem. fls on 
the same raceme). Ls oval, acute, inciso-dentate.—On 
walls, rubbish-heaps, near dwellings; almost everywhere. 6 
urens L. 1957. 
— PI. of 60—100 cm, perenn., gen. dioecious. Ls oval, acu¬ 
minate, cordate at the base, coarsely toothed. U. hispi- 
dula Cariot (see N. Beitr. I, 21).—Hedges, road-sides; 
everywhere. 6, 7 . . . . dioica L. 1958. 
506. Parietaria. Pellitory. IY, 29. ; 
1. Perianth of the staminiferous fls as long as the stas. 
Ls elliptic-lanceolate, acuminate. Stem erect, gen. simple 
or not much branched. P. erecta M. K.—Walls, rubbish- 
heaps; here and there (wanting in L. S.). 6 
officinalis L. 1959. 
— Perianth of the staminiferous fls elongated at last and 
as long again as the stas. Ls smaller, shorter and 
broader. Stem decumbent, gen. very branchy. P. diffusa 
M. K.—Walls, transalpine Switz ; Fort de l’Ecluse, not 
far from Geneva. 7 . . ramiflora IVIonch. 1960. 
506*. Cannabis. Hemp. XXII, 29. 
1. Male fls in a lax panicle; fem. fls in clusters. 7 
f sativa L. 1961. 
507. Humulus. Hop. XXII, 20. 
1. Ls heart-shaped at the base, palmati-lobed, with 3—5 
lobes, the upper also undiv., the surface rough-lumpy. 
Stem twining to the right (i. e. as the hands of a clock). 
—Hedges, thickets; distrib. 7 . Lupulus L. 1962. 
1 . 
2 . 
508. Ulmus. Elm. V, 128. IV, 6. VIII, 15. 
Fls with long pedicels, fascicled, pendent. Fr. long and 
softly ciliate at the edges. Ls soft-pubescent underneath. 
—Woods, rare; Bale, Freudenthal, Canton Schaffh., 
Lagern, Canton Aargau. 3 . . effusa Willd 1963. 
Fls with short pedicels, or almost sessile. Clustered, 
not pendent. Fr. glabr. Type of U. campestris . 2 
Seed placed immediately below the incision of the fr. 
Ls acute or short acuminate, doubly crenate-dentate, 
glabr. or almost glabr. above, tufted below in the axils 
of the nerves, otherwise almost glabr. Stas gen. 3—4. 
U. suberosa Ehrli. (branches with corky wings on the 
bark).—Woods, the localities need verifying on account 
of confusion with the following! 3 glabra Mill. 1964. 
