76. ULMACE.E. 295 



ascending, diffuse, much branched. Tnv. of two 3-lobed 1- 

 fiowered segments with a fern. fl. between them and a simple 

 lobe in front. Old walls. P. VII. IX. 



2. URTICA Linn. Nettle. 



fl. U. pilulifera (L.) ; I. opposite ovate ovate-lanceolate or 

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

 E. B. 148. j8. U. Dodartii (L.) ; 1. ovate or ovate-lanceolate 

 nearly entire. About towns or villages in the east of England. 

 A. VL VIII. Roman Nettle. E. I. 



2. U. urens (L.) ; 1. opposite elliptical serrate, spikes axillary 

 nearly simple two together falling short of the petiole, seeds 

 smooth opaque. E. B. 1236. Common weed. A. VI. IX. 



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



?anicled exceeding the petiole, seeds smooth opaque. E. B. 

 750. /3. angustifolia (W. and G.) ; 1. ovate-lanceolate rounded 

 but not cordate at the base. Common. P. VI. IX. 



3. HUMULUS Linn. Hop. 



1. H. Lupulus (L.).E. B. 427. Well known by its long 

 climbing stems, opposite rough 3 5-lobed serrate leaves, and 

 remarkable catkins. Male fl. in loose panicles. A true native 

 in many parts of England. P. VII. 



Order LXXVI. ULMACE.E. 



Fl. perfect, not in catkins. Perianth inferior, bellshaped, 

 3 8-cleft, imbricate. Stam. definite, inserted at the base of the 

 perianth and opposite to its segments. Ovary free, 1 2-celled ; 

 ovules solitary. Stigmas 2. Fr. not bursting. 



1. ULMUS. Fl. perfect. Perianth bellshaped, 4 5-cleft, 

 persistent. Stam. 5. Styles 2. Caps, compressed, winged 

 all round. 



I . ULMUS Linn. Elm. 



1. U. suberosa (Ehrh.); 1. shortly acuminate more or less 

 doubly serrate, ped. short, fl. 4 5-fid, lobes ciliate, fr. obovate 

 or oblong notched, seed-cavity chiefly above the middle offr. and 

 near the notch. U. campestris (L.) includes this species and the 

 following. a. U. campestris (Sm.) ; 1. scabrous above pubes- 

 cent beneath. E. B. 1886. U. suberosa E. B. 2161. 3. U. 

 glabra (Sm.) ; 1. rather coriaceous shining smooth or subsca- 

 brous above glabrous except in the axils of the veins beneath, 

 young 1. stip. and fr. with subsessile glands. E. B. 2248. U. 

 strict a (Lindl.) which has rigid erect close branches is a form 



