1910] Hall: Studies in Ornamental Trees and Shrubs. 29 



Flowers white, blue, lilac, or pink: stamens under % in. 

 Leaves mostly opposite. 



Calyx ovoid (the base somewhat narrowed) : leaves linear, 1 in. or 



more long 5. M. linariifolia. 



Calyx with broad base partly embedded in the stems at maturity: 



leaves linear, % to % in. long 6. M. decussata. 



Leaves mostly alternate or spiral. 



Length of leaves mostly exceeding V->. in. 



Nerves several and the leaves somewhat striate. 



Leaves elliptic to oblong, 2 to 4 in. long.. ..7. M. leucadendron. 

 Leaves ovate or lanceolate, sharp-pointed, less than 1 in. 



long 8. M. styphelioides. 



Nerves solitary or obscure, the leaves very narrow and slender 



9. M. armillaris. 



Length of leaves mostly % in. or less. 



Calyx narrowed at base (ovoid) : leaves linear, rigid, straight, 



about y 2 in. long 10. M. parviflora. 



Calyx with broad flat base, partly embedded in stem at maturity. 

 Leaves ovate with broad base, rigid, scale-like, ^4 in. or 



less long 11. M. Huegelii. 



Leaves linear, slender, curved 12. M. ericifolia. 



B. Inflorescence a terminal globular head, the axis not growing out until 



after flowering (except in no. 16). 

 Stems and leaves glabrous or nearly so. 

 Flowers pink. 



Leaves 14 in. or more wide: capsules in a globose head 



13. M. nesophila. 



Leaves % in. or less wide: capsules in a cylindric spike or scat- 

 tered . 6. M. decussata. 



Flowers white or yellowish. 



Leaves rigid, straight, sharp-pointed 14. M. nodosa. 



Leaves lax, curved, scarcely acute 12. M. ericifolia. 



Stems or leaves white with a close tomentum. 



Leaves about % in. long 15. M. incana. 



Leaves minute (less than i/ 1G in.), scale-like 16. M. micromeria. 



1. M. hypericifolia Sm. 



A tall glabrous shrub: leaves opposite, lanceolate elliptic or narrowly 

 oblong, acute or obtuse, % to 1% in. long, % to over % in. wide, the 

 midrib and numerous dots prominent beneath: flowering spikes of a rich 

 red, 2 in. long and of the same diameter, forming the bases of leafy 

 branches: stamens % to 1 in. long, the claw about % in. long and split- 

 ting into about 20 filaments: capsule sessile by a broad base: seeds 

 numerous. Illustration: PI. 3, fig. 1. 



One of the most showy species and very popular both for its 

 gorgeous bloom and for the pleasing foliage. Easily mistaken 

 for a Hypericum when not in flower. 



