347 



The central subgenus, Euchironia, calls for further subdivision. 

 It has to be noted that this subgenus, Euchironia, is wider in its 

 limits than the section Euchironia, Endl. Endlicher's Euchironia 

 included only the sections Linochiron, Griseb., and Ixochiron, 

 Griseb. The Euchironia here recognised includes, along with 

 these, the section Hippochiron, Endl., and the genus Plocandra, 

 E. Mey. The species within it arrange themselves naturally in 

 six subordinate groups, which may be conveniently treated as 

 sections. These sections are : 



1. Linochiron, Griseb., with six species ; C. arenaria, Schinzii, 

 emarginata, gracilis, Zeyheri, linoides. 



2. Heterochiron, with a single species : G. Bansei. 



3. Pseudosabbatia, Griseb., with five species : C. rosacea, trans- 

 vaalensis,fiexuosa,palustris, Krebsii. The species last mentioned 

 is the one on which Grisebach originally based this section. 



4. Plocandra, with seven species : C. humilis, erythraeodes, 

 Baumiana, purpurascens, angolensis, Verdickii, laxiflora. This 

 section does not correspond in its entirety to the genus Plocandra, 

 E. Mey., from which its name is taken ; it includes only thos9 

 species referable to Plocandra, as that genus was defined by 

 Meyer, which do not belong to Pseudosabbatia, Griseb. 



5. Hippochiron, Endl., with seven species : C. Peglerae, 

 peduncularis, jasminoides, serpylli folia, laxa, Jloribunda, 

 maritima. 



ida 



if oli 



Though tolerably well defined, the limits of these sections 

 are less cleanly cut than those of the three higher groups. 

 G. maritima, in Hippochiron, serves to connect that section with 

 Ixochiron; C. Schinzii, in Linochiron, links that section with 

 Ixochiron ; C. Peglerae, in Hippochiron, serves to connect that 

 section with Plocandra, while C VerdicHi, in Plocandra, links 

 that section with Hippochiron ; C. humilis, in Plocandra, serves 

 to connect that section with Pseudosabbatia ; finally V. Bansei, 

 in Heterochiron, has characters in common with Linochiron 

 with Hippochiron, with Pseudosabbatia and, as regards its taint 

 pubescence, even with the genus Orphium. 



The limits of these natural groups have been obtained from a 

 consideration of the sum of their common characters, it is 

 interesting, therefore, to find that what appears to be the most 

 natural grouping attainable traverses the evidence afforded by one 

 particular character which impressed so able a worker as £-. Meyer 

 as being of generic value. It was largely owing to the fact ; tfla* 

 m certain species of Chironia the anthers bf ome^spmi ilyj taist eo, 

 as they do in the allied genus ~ *' A, "~* ""™" ™° 

 propose his genus Plocandra. 



marked in most of the species tuai ^— r . a „ „i aa 



as here limited. But even in this group there is one spec es 

 0. Verdickii, in which the anthers are almost straight. In me 

 section Pseudosabbatia, however, one species of whicU to 

 originally included bv Meyer in the genus P^ndra, only two 

 of the five 8 i>eci»a have verv markedly spiral anthers. On tne 



wv *««m Butties Ul KjfllTUIllU, tiicr au^v.M ----- x - 



as they do in the allied genus Orphium, that Meyer was .led to 



« , . _ * , rf he character is certainly ^eil 



... naa thA Action Plocandra 



