.28 



URTICACEiE 



I. H. Lupidus (Common Hop).— A beautiful twining plant 

 with very rough, almost prickly, and very tough shoots (bine) ; 

 and palmately 3 — 5-lobed leaves. The staminate plants known as 

 " seeders " are common in a wild state ; but not in hop-gardens. 

 The ripe catkins are ovoid and yellow, their bracts covered with 

 resinous glands. — Hedgerows ; common. — Fl. July, August. Pe- 

 rennial. 



3. Urt/ca (Nettle). — Herbs or shrubs with tough inner bark 

 and stinging hairs ; leaves opposite, stipulate ; flowers bracteate. 



HL'MULUS LUPULUS {CotlUlWU Hof). 



4-merous ; perianth imbricate, persistent ; stamens and ovary in 

 separate flowers. (Name from the Latin uro, I burn, from its 

 stinging properties.) 



I. U. dioica (Great Nettle). — Rhizome creeping with runners ; 

 stem 2 — 4 feet high, seldom branched, pubescent ; leaves generally 

 cordate, deeply serrate; flowers in long, branched clusters. — A 

 common weed, too well known to need further description. — Fl. 

 June — September. Perennial. 



2.* U. pilulifera (Roman Nettle). — With no hairs except the 

 stings, I — 2 feet high ; leaves ovate, coarsely toothed ; jruit in 



