196 The Flora of Wiltshire. 
Locality. In waste places, and by road-sides and borders of 
fields. B. FU. August. Area, 1. 2. 8. 4. 5. Probably frequent 
throughout Wilts. It is conspicuous on account of its long branches 
and large heads, which latter much exceed in magnitude those of 
either of the other species. 
2. A. minus, (Schk.) lesser Burdock. ng. Bot. t. 1228. Reich. 
Leones xv., t. 811. Bab. Ann. Nat. Hist. ser. iii. vol. xv. p. 187. 
Locality. Waste ground and newly cut copses. B. Fi. August. 
Area, 1. 2.3.4.5. In ail the Districts. A smaller plant than the 
preceding, with heads about half the size. A. intermedium, 
(Lange) should be looked for in the county. It grows principally 
in woods. The distribution of the above species require further 
study in Wilts. I would particularly refer the student to Pro- 
fessor Babington’s paper “On the British species of Arctium,” in 
the “ Ann. of Nat. Hist.” ser. iii., vol. xv. 
SErRRaATULA, (Linn.) SAw-wokrt. 
Linn. Cl. xix. Ord. i. 
Name. A diminutive of serra, (Lat.) a saw; in allusion to the 
leaves of the plant, which are serrated. 
1. S. tinctoria, (Linn.) common or Dyer’s Saw-wort. The plant 
being used for the purpose of dyeing. ng. Bot. t. 38. St. 3, 16. 
Locality. In woods, hedges, and thickets, mostly on clay. P, 
l. July, August. Fr. September, October. Area, 1. 2. 3. 4. 5. 
Not frequently distributed in the county. Stem, 2 or 8 feet high, 
angular, rigid, branched. Leaves sometimes nearly entire, the 
sharp serratures excepted. Vowers dark purple. The flowers and 
general aspect of the saw-wort remind one of some species of 
Centaurea. 
Centaurea, (Linn.) KnaPweep. 
Linn. Cl. xix. Ord. iii. 
Name. Said to be named after the Centaur Chiron, who first 
used the plant medicinally. 
1. C. nigra, (Liun.) black discoid Knapweed. Engl. Bot. t. 278. 
(inv. not good.) Reich. Icones xv., t. 761. 
Locality. In meadows, pastures, borders of fields. and road- 

