62 Select Plants for Industrial Culture and 



Astragalus glycypkyllos, Lhm& 



Europe and Northern Asia. Succeeds on light soil, also in forest- 

 regions. It has been recommended as a perennial, substantial fodder- 

 plant, which on cow-pastures particularly increases the yield of milk. 

 Hardy as far as 61 24' north lat. in Norway [Schuebeler]. 



Astragalus gummifer, La Billardtere. 



Syria and Persia. This shrub also yields a good kind of traga- 

 canth. 



Astragalus hypoglottis, Linn. (A. Danicus, Retzius.) 



Colder regions of Europe, Asia and North- America. This per- 

 ennial plant is regarded as a good fodder-herb on calcareous and 

 gravelly soil, and would likely be of importance in any alpine region. 

 Of the enormous number of supposed species of this genus (according 

 to Boissier, not less than 750 merely in Asia Minor and the adjoining 

 countries) many must be of value for pasture, like some of the closely- 

 allied Australian Swainsonas, though they also may include deleterious 

 species ; thus A. Hornii and A. lentiginosus (Gray) of California 

 and A. mollissimus (Nuttall) of Texas, are known as loco-weeds, 

 and are poisonous to cattle and horses, just as Swainsona lesserti- 

 folia (Candolle) and S. Greyana (Lindley) have shown themselves 

 highly injurious to pasture animals in Australia ; the active principle 

 of these plants may however become of importance in medicine. 



Astragalus Hyrcanus, Pallas. 



From the Caspian Sea to Afghanistan, in sandland. This shrub 

 is locally valuable for the sustenance of pasture-animals [Dr. J. 

 AitchisonJ . 



Astragalus microcephalus, Willdenow. 



From Turkey to Russian Armenia. Gum-tragacanth is collected 

 largely also from this species [Farnsworth] and from the nearly 

 allied A. pycnocladus (Boissier and Haussknecht). 



Astragalus Parnassi, Boissier. (A. cylleneus, Heldreich.) 



Greece. This small shrub furnishes there almost exclusively the 

 commercial tragacanth. It ascends to elevations of 7,000 feet, 

 becoming therefore alpine. 



Astragalus strobiliferus, Royle. 



Asiatic Turkey. A brown tragacanth is collected from this species. 



Astragalus stromatodes, Bunge. 



Syria. At elevations of approximately 5,000 feet. Exudes Aintab- 

 tragacanth, which is also obtained from A. Kurdicus (Boissier). 



