TUE GENUS MANETTIA 



This section includes : — 



quinqiienervia SpragTie. 

 peduncrdata K. Schum. 

 Smithii SpragTie. 



lateo-rubra Benth. 

 ■injlata Sprague. 

 Rojasiana Chod.&Hassl. 



calycosa Griseb. 

 *IIoltonii Wernham. 

 *scaberrima Wernham. 



This section is so sharply defined from the previous one, as well as 

 from the rest, by the shape of the corolla, that the question arises of 

 separating the two as distinct genera. Many other paii's of genera are 

 much less clearly defined. This course, however, would interfere 

 sericjusly witli well-established nomenclature in cases like M. cordi- 

 folia, M. luteo-riihra, and others, so that it is desirable to retain the 

 well-known name Manettia for all the four sections if practicable. In 

 the case of the first two sections, the shape and size of the corolla 

 afford the sole critical characters. In this respect M. calycosa and its 

 allies M. Holtonii and M. scaherrima link § Heterochlora with 

 § Pyrrhanthos on the one hand, by way of M. angustifolia, and with 

 the small-flowered sections on the other, by way of M. hispida and 

 allied species with relatively large corollas pilose externally. Such 

 considerations seem to justify the retention of the present arrange- 

 ment so far, so that Manettia may still include also the largest section, 



III. § Ltgist[jm K. Schum. ; P. Browne. Flowers small. 

 Corolla rarely exceeding 1'5 cm. in length, usually much less; hypo- 

 crateriform with limb I'elatively large, or occasionally narrowly infun- 

 dibular with appreciable more or less erect lobes ; tube cylindrical, or 

 somewhat widened from the base upwards. 



This section includes half the total number of species. They are 

 named here, for the sake of completeness, and to show the extent of 

 the progress attained in the present investigation ; new species are 

 indicated by an asterisk. 



recurva Spragiie. 



canescens K. Schum. 

 *'pichinchensis Wernham. 



evenia Sprague. 

 *corticifer Wernham. 



lygistoides Griseb. 

 *parvula K. Schum. ex 



Wernham. 

 *Lobbii Wernham. 

 *Trianse Wernham. 



Guilleininiana K. 

 Schum. 

 *piiiifera Wernham. 

 * t h yaanophoraWernhsijn. 



Lindenii Sprague. 



Lygisfum Sw. 



iSV/( 7(mrt7t7? tana Sprague. 



alba Wernham. 



flexilis Brandegee. 



barhata Oerst. 

 *utopia Wernham. 



microcarpa K. Schum. 



diffusa Britton. 



paniculata Poepp. & 

 Endl. 

 *Sonderiana Wernham. 

 *sabiceoides Wernham. 

 *Montziana Wernham. 



iimbellata Ruiz & Pavon. 

 *dubia Wernham. 



Beyrichiana K. Schum. 



tenuis Rusby. 



merideiisis K. Schnm. 



Bangii Rusby. 



congesta K. Schum. 

 *congestoide,s Wernham. 

 *verticiUata Wernham. 



coccocypseloides Wern- 

 ham. 



racemosn Ruiz & Pavon. 

 *moUis Moritz MS. 

 *Riedelii Wernham. 



acutifolia Ruiz i^; Pavon. 

 *Glaziovii Wernham. 



This section may include, for the present, the imperfectly-known 

 and aberrant *M. cajjitata Wernham and *M. Miersiana Weridiam. 



IV. § YsGiNANTHUS K. Schum. Manettia Mutis. In all the 

 three previous sections the calyx is lobed to the very base, and free of 

 the conspicuous cushion-like disc. This section is chai-actei-ized by 

 this feature, that the calyx is tulmlar at the base, the calyx- tube being 



