APRIL. 1 TO JUNE 30, 1921. 33 



53122 to 53175— Continued. 



53160. Stipa pennata L. Poaceoe. Feather grass. 



An ornamental grass with plumose panicles borne on culms 2 to 3 feet 

 high which are in bunches. Native to the steppes of Europe and 

 Siberia. 



For previous introduction, see S. P. I. No. 53072. 



53161. Symphytum aspereimum Donn. Boraginaceje. Comfrey. 



A coarse European perennial herb with short pricklelike hairs and 

 purple flowers. 



53162 to 53173. Thalictrum spp. RanunculacejB. Meadow rue. 



53162. Thalictrum angustifolium L. 



A hardy herbaceous perennial 3 feet high, with pale-yellow 

 flowers, useful as a background for herbaceous borders. Native to 

 Germany. 



For previous introduction, see S. P. I. No. 49869. 



53163. Thalictrum aquilegifolium L. 



The European " feathered columbine," 1 to 3 feet high, with large 

 hollow stems, white flowers, and purple or white stamens. 



53164. Thalictrum delavayi Franch. 



A slender Chinese plant 2 to 3 feet high, with nodding purple 

 flowers half an inch long. 



53165. Thalictrum fendleri Engelm. 



A rather stout leafy plant native from southern Colorado west- 

 ward and southward. The flowers are in compact panicles. 



53166. Thalictrum flavum L. 

 Variety heteropJiyllum. 



A European plant 2 to 4 feet high with leaves smaller than in 

 Thalictrum flavum and slightly toothed and bearing compound, com- 

 pact inflorescences of erect pale-yellow flowers. 



53167. Thalictrum foetidum L. 



A hardy herbaceous perennial less than a foot high, with white 

 and yellow flowers. Native to France. 



53168. Thalictrum glaucum Desf. 



A glaucous southern European perennial herb 2 to 5 feet high, 

 with erect panicles of yellow flowers. 



53169. Thalictrum kemense Fries. 



A plant with thin panicles of erect flowers and bipinnate leaves 

 "With round, 3-parted leaflets.' Native to Europe, Asia, and northern 

 Africa. 



53170. Thalictrum minus L. 



A species 1 to 2 feet high native to Europe, Asia, and northern 

 Africa, with loose panicles of drooping yellow or gi'eenish flowers. 



53171. Thalictrum mintjs L. 



Received as Thalictrum dubium, which is now referred to T, 

 minus. 



53172. Thalictrum polygamum Muhl. 



A branching species 3 to 8 feet high, with long leafy panicles of 

 white flowers. Native to North America from Newfoundland and 

 Canada to Florida and westward to Ohio. 



53173. Thalictrum simplex L. 



A lilac or yellow-flowered species a foot high, native to Sweden. 



