Mr. J. Miers on the Tribe Colletieffi. 371 



petalis vix breviora, et cum illis intra lacinias inserta : fila- 

 menta brevissima, erecta; antherce reniformes, 2-loculares, 

 rima liippocrepica antice dehiscentcs. Discus pateriformis, 

 carnosulus, margine libero, crenulato. Ovarium oblongum, 

 3-sulcatum, disco breviter immersum, 3-loculare ; avula iu 

 loculis solitaria, erecta J s^y/ws brevis ; stigma ohi\\s& 'd>-\ohuva.. 

 Frucius subglobosus, 3-sulcatus, in calycis cupulam valde 10- 

 costatam discoque aucto adnatam semi-immersus^ epicarpio 

 crasso coriaceo persistente 3-valvato, endocarpio hinc sece- 

 dente, in coccis 3 elastice resilientibus, axin versus bivalvatim 

 dehiscentibus, singulis monospermis. Semen Colletia. 

 SufFrutices in Provinciis Argentinis prcecipue vigentes, rarius in 

 Australasia, ramis valde patentibus, ramulis spinescentibus ; 

 folia parvula, breviter petiolata, spathulato-oblonga, infra spinas 

 oj-ta, fasciculata, valde decidua : stipulcC minuta, 2-lob(e, laciniis 

 subulatis : flores 2-3, fasciculati e turionibus spina brevioribus 

 cum foliis prodeuntes ; pedunculo 1-floro, nutante. 



1. Discaria Americana, Hook. Bot. Misc. i. 156. tab. 44 d. Con- 

 dalia spinosa, Spr. Syst. Cur. post. iv. 108. Condalia mega- 

 potamica, Spr. Linn. xv. 473 ; — intricatissime spinosa, ramis 

 tortuosis, ramulis compresso-teretibus, fere aphyllis, obsolete 

 rigide pilosulis, spinis decussatim oppositis, iterumque spinu- 

 losis, striatis, subulatis, apice calloso-pungentibus; foliis mi- 

 nimis, oppositis, rarius 2-3 infra singulas spinas enatis, ob- 

 longis, obtusis, serratis, imo in petiolum brevem cuneatis, 

 reflexis, caducissimis : stipulis minimis, rudimentariis, rubris, 

 obsolete 2-dentatis intus pilosulis; floribus 2-3, fasciculatis, 

 uutantibus, e tuberculo sub spina stipula suffulto ortis ; 

 calyce urceolato, limbo 5-lido, petalis 5, oblongis, concavis, 

 unguiculatis, staminibus 5 petalis paulo longioribus, et laci- 

 niis 3-plo brevioribus, erectis, filamentis brevibus, antheris 

 ovatis, ovario oblongo, 3-sulcato, glabro, stylo calycis dimidio 

 longitudinis, fructu 3-cocco, calycis cupula valde 10-sulcata 

 suffulto. — Portozuelo Prov. Cordovse (mibi lecta) ; in radicibus 

 montium Prov, San Luiz et Cordova (Gillies). 



I cannot find in the Hookerian herbarium the typical plant 

 upon which Sir William Hooker founded this genus, nor any 

 other approaching its characters; it was probably a unique 

 specimen that remained in Gillies's own collection, which was 

 afterwards sold and dispersed. In one of my journeys over 

 the Pampas I found a plant in the same locality in which Gillies 

 met with his, so that I may safely consider mine as referable to 

 the same type, notwithstanding the want of flowers for its com- 

 plete identification : it is only in fruit. The floral character 

 given above is therefore derived from Sir Wm. Hooker's figure, 



25* 



