SOUTH AMERICAN PLANTS. 91 



ceded by a long string of characters, a mere repetition of the 

 generic diagnosis, without a single differential feature to discri- 

 mmate it from other sections ; while Eulycium and Lyciobatos are 

 simply adopted from Endlicher (the latter being the Isodontia of 

 Don) ; these last are founded on the inequality or equality of the 

 teeth of the calyx, and tlie greater or less inclusion of the sta- 

 mens ; the latter^ circumstance, of course, depends on the rela- 

 tive depth of the incisures of the corolla : the former character is 

 so uncertain in its value, that in the same specimen the calyx is 

 sometimes found regularly 5-toothed, while at other times it 

 assumes a somewhat bilabiate form, caused during its partial 

 growth by the splitting of two or three of its teeth : in regard 

 to the relative depth of the segments of the border of the corolla, 

 and the consequent amount of inclusion or exclusion of the 

 stamens, T find the extremes of these opposite features mixed 

 together in all the different sections, so that notwithstanding it 

 has been proposed as the rule of distinction, this character has 

 been wholly disregarded in the distribution of the species, as 

 w^ill be seen in the sequel. The best proof that can be shown of 

 the small utihty and value of these characters is evidenced by the 

 fact, that while other botanists include in the Isodontia of Don 

 [Lyciobatos^ EndL), Lycium Afrum, tenne^ propinquum, riyidum^ 

 cinereurrij hoiridum and tetrandrum^ and exclude them from Euly- 

 cium, M. Dunal separates L. Afrum, riyidum, and two others, to 

 constitute his section AmblymeriSy leaving all the other species 

 above mentioned in Eulycium] his Lyciobatos hem^ confined to 

 the old Linnsean species L, Europceum and three others, that 

 have no relationship with it whatever, the former species being 

 placed by other botanists in Eulycium, Kunth and Schlcch- 



^mim 



calycem gerente^ calycis persistentis sepalis 5 linearibus, rigide puberulis, 

 corolla calyce 3-plo longiore, tubo supra basin contracto, demum obconico, 

 hinc late ampliato, nervis plurimis lineato, rigide glanduloso-pubescente, 

 limbi laciniis 5, rotundis, reticulato-veuosis et maculato-pictis ; ca])sula 

 oblonga acuta calyce paullo longiore. — C. B. S, ad Buffel-bout, Lat. 30° 20' 

 legit cl, BurchelL — v, s. in herb, Burchell, no. 1596. — Frutex subpedalis, 

 radice fusifonni, lignoso, 5-pollicari ; /o/ifl 3-5 lin. longa, J-1 lin. lata, 

 pedunculus 1 lin. longus, bracteoU J lin. longi, sepala linearia, acuta, rigida, 

 erecta, 2 lin. longa ; corolla 5 lin. longa, 2^ lin. lata, contractione basali 

 calyce breviori, limbi lacinise subaequales; stamina didynama, inclusa,_/?/ff- 

 menta membranacea, compressa, e contractione tubi orta, apice spiraliter 

 voluta, antherre subtriangulares, aequales, pilis longis hispida?, loculis con- 

 fluentibus, rima verticali dehiscentes, marginibus valvamm rigide ciliatis : 

 ovarium conico-oblongum, calyce tertio brevius, glabrum; stylus usque ad 

 methum hirsutulus, supeme inflexus, subexsertus, stigma minimum, emar- 

 ginato-bilobum : capsula 2-valvis, 2\ lin. longa, \\ lin. lata, apice sub- 

 compressa, acuta, valvis dissepimento parallelis, semibifidis, sepalis per- 

 sistentibus amplexa. 



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