364 



LXXIL POLYGONACE-E 



[^^% 



onum. 



2. P. viviparum L. (viviparous alpine _B.) ; spike linear ] 



bulbiferous at the base, leaves linear-lanceolate the lower on ^ 



elliptical petiolate their margins revolute, foot-stalks n ! 



winged. 



E. B. t. 669. 



Mountain pastures in the north of England, and abundant on th 



^. 6 — 7.— S'/em4_8iiiche! 



Highland mountains of Scotland. 



hiffh, slender. 



Spike linear; lower part of It generally bearin 

 viviparous huJhs of a fine red colour. Stam. 8. 

 pale flesh-coloured, almost white. 



g 



little 



P, 



^nauth 



Styles 3. 

 This species increases much by 

 the bulbs, and little, if at all, by seed, its triquetrous germen proving 

 usually abortive. ^ 



** Styles 3. Achene triquetrous. Stem hrancJied, 



Stipules 2'lohed, at length torn. Root fibrous. 



Flowers axillary. 



Knotgrass. 



T 



3. P. aviculdre L. (common KJ) ; leaves elliptic-lanceolate 

 stipixles much shorter than the internodes -vvith few distant 

 simple nerves, stem herbaceous, achene about as long as and 

 covered by the perianth striate with raised points. E, B t 

 1252. 



Waste places and way-sides, abundant. 0. 5 — 9. — A most 

 variable species. 



4; P. Roherti Lois. (Robert's K.) ; leaves distant elliptic- 

 lanceolate flat, stipules much shorter than the internodes with 

 very few distant simple nerves, stem procumbent herbaceous, 

 achenes longer than the perianth protruded quite smooth and 

 shining. P. Raii Bab.: E. B. S. t. 2805. P. maritimum Ray 

 Syn. p. 147. 



Sandy sea -shores in the west of England, Wales, and Scotland, and 

 about Dublin. 0. 7 — 9. — A large straggling species, appearing, 

 as Mr. Babington well observes, exactly intermediate between P. 

 aviculare and P. maritimum, 



5. P. maritimum L. (Sea-side K,) ; flowers axillary, leaves 

 crowded elliptic-lanceolate fleshy glaucous revolute at the 

 margin, stipules about as long as the internodes with numerous 

 branched nerves, stem procumbent woody below, achene longer 

 than the perianth protruded quite smooth and shinino*. E. B. 

 S. t. 2804. 



Christ- Church Head, on the sandy shore towards Muddiford, 

 Herm Sands and Jersey ; and Grand Havre, Guernsey. Caroline 

 Park, near Edinburgh (only one plant found), Rev. Mr, Little. Kil- 

 liney Bay, near Dublin. ijL. 8, 9. 



r 



*** Stijles 3. ^ Achene triquetrous. Flowers panided or racemose. 

 Stipules oblique at the summit. Root fibrous. Buckwheat. 



f Stem erect, with cymose panicles. 



6. P. ^Fagopi/rum L. (common B.); leaves cordate-sagit- 



^.A 



I 



ji 



«** St 



5, stjlt 

 leaves 



spies I 



te 

 spikes 



ro 



