216 



Mr. J. Miers on the Tribe Colletiese. 



border ; here they originate far within the tube. Sir W. Hooker, 

 on the authority of Gillies, describes it as being only 1 or 2 feet 

 in height, with decumbent stems ; Bridges, on the contrary, says 

 that it grows to the height of 6 or 10 feet, which is more probable. 

 It is found also in Rancagua, where it bears the name of Cruzero, 

 appearing as a short tree, with a somewhat slender stem. A 

 decoction is there made from its branches by the natives, who 

 use it as a purgative. It comes into bloom in December and 

 January. The branchlets are straight and terete, the primary 

 spines are 5 inch apart, generally verticillate, and | inch long ; 

 the secondary spines are 4 lines long, and the tertiary spinelets 

 about two lines long, and slender. In the Rancagua specimen, 

 they are somewhat longer and stouter. The flowers are densely 

 aggregated, and cover the spicated branchlets; the pedicel is 

 1J line long; the tube of the calyx is 3J lines long, the lanceo- 

 late segments 1 line long, and it is 1 line in diameter f. 



Species exclusce. 



1. Colletia affinis, Clos. 



2. articulata, Phil. 



3. australis, Brongn. 



4. Chacaya, Don. 



5. crenata, Clos. 



6. discolor, Hook. 



7. disperma, DC. 



8. Doniana, Clos. 



9. Ephedra, Vent. 



10. inermis, Clos. 



11. infesta, Brongn. 



longispina, Hook. 



= Retanilla stricta*. 

 = Retanilla articulata* . 

 = Discaria australis, Hook. 

 = Ochetophila 3-nervis, Pop. 

 = Notophcena foliosa*. 

 = Notophcena discolor*. 

 =?= Microrhamnus ? 

 = Ochetophila 3-nervis, Pop. 

 = Retanilla Ephedra, Brongn. 

 = Ochetophila 3-nervis. 

 = Adolphia infesta, Meisn. 



=Discaria longispina*. 



13. Maytenoides, Griseb. =Condalia Maytenoides = Scia- 



dophila Maytenoides, Phil. 

 multiflora, Mo9 Sesse. = Adolphia infesta, Meisn. 



14 

 15 

 16 

 17 

 18 

 19 

 20 

 21 

 22 

 23 

 24 

 25 



nana, Clos. 

 obcordata, Vent. 

 pubescens, Brongn. 

 serratifolia, Vent. 

 serratifolia, Hook. 

 spicata, Willd. 

 tetragona, Brongn. 

 tetrandra, Clos. 

 tomentosa, Phil. 

 Tralhuen, Bert. 

 Trebu, Bert. 



= Ochetophila prostrata*. 



= Retanilla obcordata, Brongn. 



= Discaria australis, Hook. 



= Notophcena serratifolia*. 



= Notophcena foliosa*. 



= Scypharia senticosa*. 



= Scypharia ? tetragona *. 



= Trevoa Closiana*. 



= Notophoena tomentosa*. 



= Talguenca costata*. 



= Trevoa 3-nervis*. 



[To be continued.] 

 t This species will be shown in the * Contributions,' plate 36 E. 



