75. TTRTICACE^). 373 



Order LXXV. UETICACEJE. 



Fl. monoecious, dioecious, or rarely perfect. Perianth inferior, 

 4_3 6-parted, imbricate; or in the female flowers tubular 

 notched or scalelike and open. Stam. definite, free, inserted at 

 the base of the perianth and opposite to its lobes. Ovary free, 

 1-celled ; ovules solitary. Stigmas 1 2. Fr. not bursting. 



1. PARIKTARIA. Fl. polygamous, surrounded by an involucre. 

 Perianth bellshaped, 4-parted. Stam. 4. Style filiform. 

 L. alternate. Hairs simple. 



2. URTICA. Fl. monoecious r or dioecious. Males in loose 

 racemes ; perianth 4- parted ; stain. 4. Females in capitate 

 racemes ; perianth 2-parted - y stigma sessile. L. opposite. 

 Hairs stinging. 



1. PAEIETA KIA Linn. Wall-Pellitory. 



1. P. ramiflora (Moench) ; 1. elliptic or elliptic-lanceolate 3- 

 veined above the base, bracts combined into an involucre of two 

 3-lobed segm., perianth bellshaped equalling the stam. or in the 

 perfect fi. (red) lengthening to twice as long as the stamens. 

 E. B. 879. Curt. ii. 203. P. diffasa (Koch) ed. viii.St. 

 prostrate or ascending, simple or branched below. Cymes 

 axillary, dense ; primary fern. fl. between the inv.-segm. and 

 with 1 or 2 free bracts j each segm. bears on its face 1 or 3 

 fl., of which the lateral have bracts. Old walls. P. VI. IXv 



E. S. I. 



2. URTI'CA Linn. Nettle. 



Jl. U. pilulif era (L) ; I. opposite ovate ovate-lanceolate or 

 cordate-acuminate coarsely toothed, clusters of fr. globose stalked. 

 E. B. 148. About 2 ft. high. Very venomous. /3. U. Do- 

 dartii(Lt.) ; 1. ovate or ovate-lanceolate nearly entire. Sy. E. B. 

 1281. About towns and villages in the East of England, rare. 

 A. VI. VIII. Roman Nettle. E. 



2. U. ilrens (L.) ; 1. opposite elliptic-ovate serrate, spikes axil- 

 lary nearly simple two together falling short of the petiole, seeds 

 oblong. E. B. 1236. Scarcely a foot high, glabrous, with 

 stinging bristles. Common weed. A. VI. IX. E. S. I. 



3. U. dioica (L.) ; 1. opposite cordate serrate, spikes axillary 

 panicled exceeding the petiole, seeds ovate. E. B. 1750. Creep- 

 ing. St. 2 3 it. high. Hairy. Stinging. Dark-green. 

 f. angustifolia ( Wimm. & Grab.) j 1. ovate-lanceolate rounded 

 but h'ardly cordate at the base. Common. P. VI. IX. 



E. S. I. 





