Car ex.'] 



CVI. CYPERACEiE. 



499 



but differ widely in the fo]ia<je : E, anf/ustifoIhimha.s an intermediate 

 kind of leaf, but the stalks of its spikes are quite glabrous. 



^^^ 



Floicers imperfect 



10 KoBRKSiA Willd. Kobresia. 



Spikelets 1 — 2- (or 4-) flowered, included In a broad slieathing 

 bractea, aggregate, and forming a compound spike. Floicers 



all imperfect. 



fl. 



fertile one and within a convolute glume, in the sterile spikelets 

 naked. Stam. 3. "--■-- 



Style 1. 



Stigmas 3. Achene obtuse trigonal, sur- 



Perigynium wantinir. — In 



iile fl 

 gynium 0. 



rounded by its convolute scale. 



habit nearly allied to Sciiyus and Blijsrnus^ but the flowers are 

 monoecious : it has not the urceolate perigyrmim of Carex, 

 Is"amed in honour of M. de Kob?^es^ of Augsburg, a patron of 



botany. 



F 



1. K. caincina Willd. {compound-headed K.) ; spikelets aggre- 

 gated into a lobed spike, fertile spikelets below the sterile^ones 

 usually 1 -flowered rarely with an upper rudimentary or sta- 

 minate floret, sterile spikelets 1 -flowered without a glume. 

 Elyna Mert et Koch. Schoenus monoicus Sm. : E. B. t. 1410. 



Moors in Durham and Yorkshire. 



On Cronkley Fell, and about 

 On Shrcine-ach-Loehan, Perth- 

 %. 8. — Scarcely a span high,|densely tufted, with narrow- 

 linear leaves, sl)orter than the naked stem. Bracteas and scales re- 

 markably convolute, brown. Germen oblong, scarcely trigonal. 



Widdy bank, in Teesdale Forest. 



shire. 'IL. 8. 



11. Carex Linn. 



Carex or Sedi>;e. 



the same or in different spikelets. 

 sides. — Bm^vpji fl. Stam 2- 



Glumes imbricated on all 



/■ 



3. 



file fl. 



Perigynium of 

 1. Stigmas 



(in C. 



one piece, urceolate, enclosing the pistil. ' Style 

 2—3. Achene compressed or triquetrous, very rarely 

 microglochin) with an hypogynous bristle, included within the 

 pov&ktQnt perigyjiium (which is therefore in this genus supposed 

 to form the external part of the fruit), — IsTame : supposed to 

 be derived from gearr in Celtic, hence Kreipw in Greek, to cut or 

 shea?^, in allusion to its sharp-angled leaves and stems.^ 



\ln this difficult genus, the species \v\t\C glabrous fruit and terminal barren 

 5^?A-e/^/s require to be entirely rearranged, many of them not strictly agreeing with 

 ine characters of the sections to which they are referred. Thus, some of those 

 placed m the section with single barren spikelets have occasionaHy as many as 3, 

 ana a lew of th-se of the section with 2 or more such spikelets exliiblt frequently 

 t il^i^^' "^ length of the fertile spikelets" is also uncertain; and their being 



siaiKed or sessile, erect or drooping (even although we refer only to the lowermost 

 one}, are characters equally subject to variation in the same species. The pu- 

 Descence of the fruit is not always to be relied ou. The number of the sfigynas is 

 generally constant, but occasionally we have seen only two in species which are 

 "e^criDea as having always three. The form of the achene varies considerably in 



