204 Mr. J. Miers on the Tribe Colletiese. 



above described appears to be that figured by Lamarck as Colletia 

 spinosa ; Jussieu's plant, of which there are two small specimens, 

 one in flower, the other in seed, corresponds with another larger 

 specimen collected also in Peru (Tarma) by Dombey, which I 

 have described under the name of C. aciculata. Lamarck's 

 figure, though coarsely drawn, is tolerably correct ; but the spines 

 in the specimen are longer than are there represented, and not 

 at all curved. I have adopted from his description and plate 

 the character of the leaves which are now wanting in the two 

 existing specimens, both collected by Commerson in " Buenos 

 Ayres," or at least in the Argentine Provinces. In the full- 

 grown specimen, the spines are an inch long, and a line in dia- 

 meter at the base ; in the younger specimen, with the flowers in 

 bud, the spines are somewhat shorter, more slender, and more 

 terete ; they are all of a dark green colour when dried. The 

 leaves in Lamarck's figure are 4 lines long and 2 lines broad. 

 The slender reflexed peduncles are about a line long ; the tube 

 of the calyx is 2-2^ lines long, 1 1 line in diameter, its segments 

 being 1 line long and J line broad*. 



2. Colletia intricata, n. sp. ; spinosissima, glaberrima, ramulis 

 compressis, spinis longis, curvulis, spinulisque decussatis, te- 

 retibus, subulatis, apice callo acuto rubro pungentibus ; foliis 

 rarissimis, oppositis, oblongis, crassiusculis, obtusis, dentatis, 

 3-nerviis, imo in petiolum sublongum canaliculatum gradatim 

 angustatis, e sinu dentium stipulse minutse enatis; floribus 



i pro genere majusculis 2-3, fasciculatis, e tuberculo squamoso 

 infra spinas prodeuntibus, nutantibus ; calyce cylindrico, tubo 

 amplo, 10-nervio, rubescente, imo carnoso, limbi laciniis 5 

 albis, reflexis ; staminibus in sinubus subsessilibus, filamentis 

 brevissimis. In Andibus Mendocinis et Chilensibus : circa 

 Uspallatam (altit. 6000 ped.) et procul Mendoza (2600 ped.) 

 mini lecta; v. s. in herb. Hook, in Andibus Mendozse 

 (Gillies); Chile (Bridges), a Valparaiso missa, sed forsan in 

 Andibus lecta. Vernac. Yaquil. 



This differs from the typical species in its longer, more slen- 

 der, and more terete, obsoletely striated spines, in its general 

 glaucous hue, in the form of its leaves, which are denticulated, 

 and more especially in its conspicuous and larger flowers. It 

 forms a low, branching, spiny, and almost leafless shrub. Its 

 decussating nodes are half an inch apart ; its spines are opposite, 

 from 7 to 15 lines long; the leaves are 3 lines long, 1| line 

 broad, upon a petiole of 1 line in length ; the petiole is inserted 

 in a sharp notch on the apex of a minute rigid stipular scale 



* A figure of this species, with analytical details, will be given in the 

 ' Contributions to Botany,' plate 34 A. 



