TERNSTROMIACEiE. 99 



Division. Endlicher, in the second supplement to the Genera Plantarum, 

 has added a third section, Adelphonema, for the Japanese Stuartia monadel- 

 pha of Zuccarini ; but his distinguishing character (the union of the base of 

 the filaments into a ring) belongs equally to the American species ; and, ex- 

 cept that the stigmas are distinct, it seems to be a strict congener of our S. 

 Virginica. But the fruit, which may afford some distinctive character, is 

 unknown. The three species may for the present be disposed under the two 

 subgenera, viz. : — 



§1. Stuartia, Cav. — Styles entirely united into one. Sepals and slight- 

 ly crenulate petals only 5. Capsule subglobose, pointless, the valves 

 extremely thickened. Seeds with a smooth and shining testa, not at all 

 margined. — S. Virginica, Cav. (S. Malachodendron, Linn.) * and S. 

 (Adelphonema, Ejidl.) monadelpba, Zucc. 

 ^2. Malachodendron, Cav. — Styles 5, distinct. Sepals and especially 

 the crenulate petals oftener 6. Capsule ovate, acuminate, rather sharply 

 five-angled ; the valves and the adherent dissepiments less thickened, on 

 dehiscence leaving little or no central axis or columella. Seed with 

 a somewhat wrinkled epidermis, which extends into a slight wing 

 around the whole margin. — S. pentagyna, L'Her. (Malachodendron 

 ovatum, Cav.) 



PLATE 138. Stuartia Virginica, Cav. ; — a branch in flower, of the 

 natural size. 



1. Posterior view of a flower, showing the calyx and the two bractlets. 



2. Diagram of aestivation, &c., from a cross section of a flower-bud. 



3. Enlarged vertical section through the ovary (leaving the style and stig- 



mas entire), receptacle, calyx, the base of the corolla and stamens 

 (two of which are left), showing the union of the filaments with 

 the base of the petals, the insertion of the ovules, &c. 



4. The stamens cut away at their insertion to show the monadelphous ring 



at the base, enlarged. 



5. Capsule, with the persistent calyx, of the natural size. 



6. Vertical section of the same, showing the seeds of two cells, in place. 



7. Transverse section of the same in dehiscence (showing the very thick 



valves), and of the contained seeds. 



8. Transverse section of a seed, magnified, showing the thickness of the 



crustaceous testa, the plane cotyledons, &c. 



9. Vertical section of the same, displaying the embryo entire in the axis 



of the albumen. 



* The original Malachodendron of M'xtcheW, with whom the name commences, 

 was probably this species, the original Stuartia of Catesby; but having been 

 taken up by Cavanillcs as the generic name of the penlagynous species, which 

 must always be distinguished as a subgenus at least, it is liable to produce confu- 

 sion if retained both as a specific name in one section and as the subgeneric 

 name of the other. It should therefore give place to the later specific name of 

 S. Virginica, Cav. 



