OF THE INFLORESCENCE. 



Umbella, an Umbel, for which some au» 

 thors retain the obsolete old English name 

 of Rundle. In this several flower-stalks, or 

 rays, nearly equal in length, spread from 

 one common centre, their summits forming 

 a level, convex, or even globose surface, 

 more rarely a concave one. When each 

 ray is simple and single-flowered, it is called 

 a simple umbel,/". 136, as those of Allium 

 iirsinum, Engl Bot. t. 122, Ivy, t. 126?, 

 Fri?mda vevis, t, 5, fariiioso, t, 6, clatior, 

 i, 513, and Eucalyptm resinifera, Eiof, 

 Bot. i. 84. In a compound umbel each 

 ray or stalk mostly bears an ttmhellidai or 

 partial umbel, as Athamania Libanofis, 

 Engl. Bot. t. 138. This is usually the 

 case in the very natural order of plants 

 called umbelliferous, /. 138, to which the 

 last-mentioned, as well as the common 

 Carrot, Parsnep, Parsley, Hemlock, &c. 

 belongs. 



A few only of this order have simple um- 

 bels, as Hijdrocotyle vulgaris^ f. 751, and 

 the curious A strantia.f. 1 37, and Eriocalia^ 

 Eiot. Bot. t. 76 — 79. InEuphorhia the um- 

 bel is differently compounded, consisting i^ 



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