part of the lip, forming together a prolongation of the faux above the in- 

 sertion of the petals. 



Staminodes. Staminodes have not been mentioned by the first describers 

 KOENIG and GRIFFITH and are considered as absent in the more recent 

 papers. Only GAGNEPAIN, the minute observer, regards as an equivalent of 

 accrete staminodes two thickened broad lines ciliate at their base springing 

 from the base of the labellum, and running parallel to the outer margins, thus 

 determining the shape of the labellum, which he observed in the flowers of 

 Amomuin Valetonii G. {Hornstedtia lycostoma K. Sch!). This ingenuous 

 suggestion is principally bore out by the discovery by the writer of free 

 staminodes, originating exactly at the same point, in H. scyphifera and allied 

 species. He however holds the opinion that not the thickened lines but only 

 the ciliate pointât their base is to be considered as the homologue of the 

 last remnant of an obsolete staminode. 



The staminodes of H. scyphifera are inserted between the filament and 

 the lip a little above the base of the latter next to the base of the auricles, 

 they are oblong flat, 1.5—3 mm. long and wide, puberulous at the bottom> 

 they pass into the hairy line which seperates the base of the filament from 

 the lip. (Tab. 10, fig. 1). 



In M. Pininga and H. paludosa they are still shorter and curved 

 awlshaped. In H. Pininga forma sumatrana they are obsolete. 



In the other subgroup free staminodes are wanting— only in H. elongata 

 there is a linear dentiform processus about 4 mm. long on the upcurved 

 margin of the auricle. In H. mollis and a recently collected variety of 

 M. elongata from Padang the dentiform processus is wanting and the mar- 

 gins of the auricle are profoundly crenate. 



7. Pistillum. The ovary is oblong, compressed triangular, 3-celled, 

 in most species sericeous, sometimes (H. scyphifera, H. Pininga) glabrous 

 but with a ring of long hairs at the top. The slender style, mostly pubes- 

 cent at the upperend, passes between the thecae and surpasses them in the 

 open flower. In the Leonurus group the stigma is capitated and either 

 broadly obtrigonous (M. elongata and M. mollis) or subglobose and rather 

 small, in the first case it has a broad transversely elliptic mouth subapical but 

 inclined to the ventralside, in the latter one the aperture is round or, in 

 H. alliacea, semilunar, due to a depression of the upper wall and occupies 

 the most part of the ventralside. Its margin is smooth and without ciles, 

 with two vertical ciliate lips. 



In the Scyphif era-group the stigma is cyathiform with an elliptic termin - 

 al mouth, here it is always densely hairy and the mouth long-ciiiate. In 

 H. villosa the style is only very little dilated at the top, very hairy and 

 with a terminal round subtwolipped aperture. 



8. Nectaries. Nectaries or stylodes occur in very different shapes in the 

 diverse species. Commonly they are closely connected forming a fleshy tube 

 embracing the base of the style, which under a slight pressure often splits, 

 vertically into two or more longitudinal lobes of ar unequal length. The 



