216 



Mr. J. Miers on the Tribe Colletiese. 



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

 on the authority of GilheS;, 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 tei'ete, the primary 

 spines are | inch apart, generally verticillate, and g 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 

 \\ line long; the tube of the calyx is 3^ lines long, the lanceo- 

 late segments 1 line long, and it is 1 line in diameterf. 



Species exdusce. 



1. 

 2. 

 3. 



4. 



5. 



6. 



7. 



8. 



9. 

 10. 

 II. 

 12. 

 13. 



14. 

 15. 

 16. 

 17. 

 18. 

 19. 

 20. 

 21. 

 22. 

 23. 

 24. 

 25. 



Colletia ajfinis, Clos. 



articulcita, Phil. 



australis, Brongn. 



Chacaya, Don. 



crenata, Clos. 



discolo?', Hook, 



disperma, DC. 



Duniana, Clos. 



Ephedra, Vent. 



inermis, Clos. 



infesta, Brongn. 



longispina, Hook 



= Retaiiilla strida *. 



= Retanilla articulator . 



■=T>iscaria australis, Hook. 



= Ochetophila ?)-nervis. Pop. 



= Notophcena foliosa^. 



= N^otophana discolor^. 



= Microrhamnus ? 



= Oclietophila ^-nervis, Pop. 



■= Retanilla Ephedra, Brongn. 



= Ochetophila 2>-nervis. 



^ Adolphia infesta, Meisn. 



= Discaria lonyispina * . 



Maytenoides, Griseb. =Condalia Maytenoides = Scia- 



dophila Maytenoides, Phil. 

 multiflora, M.0^. Ses&e. = Adolphia infesta, Meisn. 



— nana, Clos. 



— ohcorduta, Vent. 



— pubescens, Brongn. 



— serratifolia. Vent. 



— serratifolia, Hook. 



— spicata, Willd. 



— tctrucjona, Brongn. 



— tctrandra, Clos. 



— tomentosa, Phil. 



— Tralhuen, Bert. 



— Trcbu, Bert. 



Ochetophila prostrata^. 

 =iRetanilla obcordata, Brongn. 

 =^ Discaria australis, Hook. 

 = Notophcena serratifolia*. 

 = Notophcena foliosa*. 

 = Scypharia senticosa*. 

 = Scypharia ? tetragona *, 

 = Trevoa Closiana*. 

 = Notophcena tomentosa*. 

 z=Talyuenca costata*. 

 = Trevoa Z-nervis*. 



[To be continued.] 

 t This species will be shown iu the ' Contributions,' plate 3G e. 



