344 



to Moench's genus and Endlicher's section so named. But the 

 limits of Roeslinia, Griseb., are less natural than those of 

 Roeslinia, Endl., for it includes, along with C. baccifera, 

 a species, C. serpyllifolia, Lehm., which Grisebach has accurately 

 described as having a capsular, not a berry-like fruit. Meyer 



parvifolia 



Hippochiron 



44) modified 



_ v _ w ^^ -w^ -w^v^j. \"^ V-/ • -«- ' uri^vf • AAi, £/« U%S ^^-J XX-lvCf.XXX^*_>l XX tO L/X ^/ ▼ XWC4P 



treatment by recognising Orphium, E. Mey., which corresponds to 

 the section Trachanthera, Griseb., and Plocandra, E. Mey., which 



1V\aI n/1 r^ r* T)*% ** •» m -7 ^ ^ ^m 7, 7, X 7 /"N _ _ • _ _ t m T 1 • • j i • /» • l •• 



remainin 



includes Pseudosabbatia, Griseb. -..„««„.«.„,„ «. „.„.. . . & 



sections remained unchanged, but the name Silenophyllum was 

 abandoned in favour of Hippochiron, Endl., and the names Viscaria 

 and Linophyllum were altered to Ixochiron, Griseb., and Lino- 

 chiron, Griseb., respectively. To the former he added C. arenaria, 

 E. Mey., which is really a Linochiron. Grisebach, moreover, still 



7 - 



Hippochiron 



'pyllifolia 



Valerandia, Neck., which Grisebach in 1839 had included in 



Chironia, was in 1845 doubtfully referred by him to Orphium, a 



proposal at variance with that made by Endlicher in 1810 {Gen. 



PL Supply p. 1399) when he, while recognising Orphium as 



distinct from Chironia, nevertheless referred Valerandia to the 

 latter genus. 



In 1876 Bentham and Hooker (Gen. PL ii., p. 805) pointed out 

 that Plocandra, E. Mey., is not a distinct genus, and that Roeslinia, 

 Moench, which most authors have retained in Chironia, is more 

 entitled to separate consideration than Plocandra. No sectional 

 subdivision of Chironia was suggested. Orphium, E. Mey., was 

 accepted by Bentham and Hooker as a distinct genus, but as 

 Knoblauch has shewn, the differential characters advanced, though 

 accurate, are hardly adequate. The most distinctive character, not 

 mentioned by Bentham and Hooker, is the presence of a prominent 

 disk between the calyx and corolla in Orphium, whereas Chironia 

 has no such disk. Valerandia, Neck., and its reference to Orphium, 

 were alluded to, but no definite decision was advanced as regards 

 the divergent views held by Grisebach and Endlicher. 



«* J? 187T P liv £ r , ( -- Hook ' Ze ' Pl > *■ 1229 ) Proposed a section Xantho- 

 c '"ron under Chironia for a new species, C. exigua, Oliv, This 

 piant is, however, a Sebaea, so that the section Xanthochiron 



disappears. 



Nat. Pflanzenf., iv., 2, pp. 76-78) 



f e « Sf ° r * )hl ™ n > E - Mey., as a genus apart from Chironia, and 

 tomirmi ham and Hook er in reducing Plocandra, E. Mey., 



iiil««t^L g ^S?v C ¥r iM !* !t Gil S has recognised the four sections 

 ? .?. pt u b l ? ns ? bach in 18*5, viz. i-Himochiron. Endl.: Ixochiron. 



zSSuJi^T^ Griseb " and KwKnia, Endl. Ixochiron and 



S^; re dehmited as they were by Grisebach. 

 c* ron, Gilg 18 different from Himmchiron *« nr 



tf 



Mevpr En,Tn»v; * Jr. "«"» aippocniron as understood by 



!ffi S Snn "!* & ri8ebach . Bince it not only includes the 



equallv nahi^l g , t0 th r> e 8e , ction > but those that belong to the 

 equally natural section Pseudosabbatia, Griseb., and in addition 



