108 MR. JOHN MIERS ON VERBENACEÆ FROM 
tate nigrescentibus, in axillis linea transversali constrictis; foliis oppositis, lanceo- 
latis, utrinque acutis, mucronatis, integerrimis, crasso-coriaceis, enerviis; petiolo 
brevi, imo incrassato et cum opposito nexo, limbo delapso persistente et tune nodu- 
liformi: spicis terminalibus; floribus parvis, laxis, subpatentibus.—In prov, Val- 
divia : v. s$. in hb. Hook. ad Rio Negro (Gay). 
This plant has much the aspect of D. juncea, but the leaves are smaller, more lanceo- 
late, entire, and the flowers are only half the size; it is also very different from 
D. Valdiviana, its branches being more herbaceous, less branched, becoming black in 
drying; and its axils are more distant, being 14-2 inches apart: the leaves are 4-9 lines 
long, 14-2 lines broad. The terminal spike is 1 inch long: the 5-nerved calyx has five 
short excurrent teeth, it is smooth below, pubescent on both sides towards the top, and 
is 1 line long : the corolla is swollen below its mouth, retrorsely pilose inside, the tube 
being 24 lines long, its 4 rounded lobes 3 line long, the upper one being deeply bifid; 
there is a rudimentary fifth stamen, the longer pair not extending beyond the mouth. ` 
DESCRIPTION OF THE PLATES. 
PLATE XXVI. 
Shows a portion of a plant of Raphithamnus cyanocarpus, in flower and in fruit: natural size. 
Fig. 1. A flower. 
Fig. 2. The calyx and style: both nat. size. 
Fig. 3. The pistil, with half of the calyx removed. 
Fig. 4. The corolla cut open to show the position of the stamens in regard to the lobes of the border: 
both magnified. 
Fig. 5. A stamen, seen in three different positions. 
Fig. 6. The style and stigma: both more magnified. 
Fig. 7. A longitudinal section of the ovary, in a line parallel with the floral axis. 
Fig. 8. A transverse section of the same, showing its four uniovular cells, separated in the direction of 
the floral axis by the space occupied by the hollow central columella: both magnified. 
Fig. 9. A fruit, with its umbilicated apex. 
. 10. The same, with half of its fleshy covering removed, showing its two contained nucules. 
Fig. 11. One of the nucules, seen on its external face. 
. 12. The same, seen on its inner flattened face, showing the two apertures leading into the base of 
the cells, for the passage of the cords of nourishing vessels from the columella. iE 
Fig. 13. A transverse section of the same, showing the position of the seeds and of their raphe: all nal. 
size. 
Fig. 14. One of the nucules, with its inner wall cut away, showing the position of the seeds and the aper- 
tures leading into the cells for the cords of nourishing vessels. 
Fig. 15. A cross longitudinal section of the same, through one of the cells, showing the basal apre 
the seed being removed. | 
Fig. 16. The seed removed, showing the raphe in continuation with the cord of nourishing vessels. 
Fig. 17. The Sr embryo extracted, showing its basal radicle and fleshy cotyledons : all mag- 
