38 Botany. 



1392. Q. robur, L. (THE BRITISH OAK), 45. Protogynous wind 

 fls (Kerner) ; v. com. exc. on the chalk. The prevailing form 

 is var. pedunculata, but var. sessiliflora is not uncommon. 



Q. cerris, L. (THE TURKEY OAK, Medit.). An alien with spiny 

 cupules. 



1. Plentiful in coppices in Whitefoot Lane, Southend, 



and about Beckenham. W.H.G. 



2. Avery Hill, '07. L.C.C. 



Q. ilex, L. (THE EVERGREEN OAK, Medit.). An alien. 



1. Several old trees in Holwood Park, prob. introd. by 



William Pitt, and some fine trees by roadside at 

 Park Gate, Chelsfield, nr. the upper entrance to 

 Lullingstone Park. W.H.G. 



2. At back of Grace's Farm, Eltham, and at Avery Hill, 



'07. L.C.C. 



3. Well-grown trees in cemetery of Old Bexley Church, 



'06. G. N. Melland. 



4. Greenwich Park, some fine trees. 



5. R. A. Observatory, Woolwich, '07. C.H.G. 



ALLIANCE III. URTICALES. 



N.O. 1. ULMACE^E (B. 6- H. unite the Ulmacea and Hora- 

 ces with the Urticacecz). 



(390) ULMUS, L. Protogynous wind flowers. 



1377. U. montana, With. (WYCH ELM), 34. Where found, prob. 



alw. planted, but it may be propagated by seed ; freq. in 



many parts of the district. 



a. In great abundance in the hedges betw. E. Wickham 

 and Plumstead ; in a lane betw. Woolwich and the 

 Com. beyond the Warren ; a few trees in the hedges 

 betw. Greenwich and Woolwich (1793). 



1378. U. campestris, L. (SURCULOSA, Stokes), the COMMON ELM, 



1 5. Very commonly planted in hedges, woods, etc. Not 

 self -propagated by seed in this country, and " only rarely 

 anywhere." (Boulger : Familiar Trees.) 



N.O. 2. HORACES. 



1379. HUMULUS lupulus, L. 78, P. Native, but in Kent a com. 



escape. PL dioecious, fls protogynous and wind-pollinated. 



N.O. 3. URTICACEM. Essentially wind-pollinated fls. produc- 

 ing vast quantities of dry pollen. 



(372) URTICA, L. (THE STINGING NETTLE). 



