180 



XCVIII. ACANTHACE/E (cLAUKE). 



[Jitsticia. 



spinous-vvinged capsules. — Herbs or shrubs. Leaves entire or obscurely 

 wavy-crenate. Flowers small or medium-sized, purple-yellow or white, 

 in spikes (strobilate or loose, or interrupted below), terminal or axillary, 

 or in axillary clusters, or solitary, or in slender loose axillary spikes, or 

 in panicles, or in reduced (often panicled) cymes ; floral leaves broad, 

 imbricated (as in strobilate spikes), or narrow, long, or small ; bracts 

 long elliptic, or narrow small, or 0. 



Species 200; throughout all warm regions. 



*Betonica. — Spikes strobilate; floral leaves ovate, often 



somewhat 1-ranked. Sepals 5, except in 11. J. tenella. 



Pollen hardly tubercled. 



Floral leaves white reticulated with green or purple 



veins. Capsule hairy. (Species 1-7 are all one in 



the opinion of T. Anderson and of S. Moore.) 



Floral leaves reticulated with green veins. 



Petiole \-^ in. long 



Petiole 0-Jg^ in. long. 



Leaves softly hairy beneath. 



Leaves up to 3 in. long ..... 



Leaves |-| in. long 



Leaves nearly glabrous. 



Leaves 2\ in. long ..... 



Leaves 1| in. long ..... 



Leaves f in. long 



Floral leaves reticulated with purple veins . 

 Floral leaves not white, reticulate-veined. 

 Sepals 5. 



Leaves up to 7 in, long; floral leaves | in. long, 

 white margined ...... 



Leaves up to 3| in. long ; floral leaves \-^ in. long 

 Leaves up to 1 in. long, round 



]. J. Betonica. 



2. J. betonicoides. 



5. J. ruwenzoriensis . 



6. J. andongensis. 

 4. J. trinervis. 



3. J. nilgherrensis. 



7. J. versicolor. 



Sepals 4 ; floral leaves \ in. long . . . . 



^ROSTELLTJLAEIA. — Flowers in terminal spikes, hardly 

 strobilate, more or less interrupted at the base; floral 

 leaves narrower than in subgenus Betonica, upper 

 imbricated. Flowers 1-3 under each floral leaf, which 

 becomes the " proper bract " when there is only 

 1 flower under it. 

 Sepals 5 (in a few species the posticous sepal much smaller 

 than the others), not conspicuously white-margined. 

 Floral leaves ovate or elliptic (see also 21. J. nyassana). 

 [Species in this group of which the fruit is un- 

 known may turn out to be of the genus 

 Monechma?^ 



8. J. Pseudorungia. 



9. J. pmtcinervia. 



10. J. Emini. 



11. J. tenella. 



12. J. phyllostachys. 



Flowers 3-2 under each floral leaf 

 Flowers 1 under each floral leaf (bract). 



Leaves acuminate ; ovary glabrous . . .13. J. lata. 



Leaves subotuse ; ovary shaggy . . . 14. J. simplicispica. 



Corolla \-\ in. long. 



Leaves 5 in. in diam., very long petioled, cordate .15. J.Jittonioides 



Leaves f in. long ; floral leaves orbicular 



16. J. mossambieensis. 



