575 



Hie calycine portion of the fruit may extend beyond the capsular portion to varying heights; its 

 rim or margin may be acute, as in E. Fodscheana, or it may be of varying width, remain horizontal, as 

 in E. goniocalyx (E. dmopliora is meant, J.H.M.), or become ascending with a convex slope, as in 

 E. capitdlata, or with a concave slope, as in E. longifolia, E. pyriformis, &c. 



In the appended carpological schedule I have set forth the leading geometric forms assumed by 

 the Eucalyptine fruits, so there is no need to describe them in this place ; but a fundamental investigation 

 is that of the persistency of shape for each species. From my own experience, the shape of the fruit is 

 constant within natural aud reasonable limits. (What the ascertained amount of variation is in each 

 species is one of the objects of the illustrations in the present work, J.H.M.) Thus E. Foelschcami is 

 usually globosely urn-shaped; but by contraction at the summit becomes globosely-oval — a natural 

 transition. E. capitdlata is usually biconic, but may become roundly depressed atop, thus passing to 

 globulose or ovoid-conic. I do not find any variation of shape that does violence to a geometric 

 development. . . . 



2. External .Sculpture and Ornament. — Though the outer surface of the fruit is usually smooth, 

 with a more or less circular outline in transverse section, yet it becomes prismatic in E. goniocalyx, axially 

 ridged in E. incrassata, E. pyriformis, &c, or ornamented with asperities, as in E. Foelscheana. . . . 



3. Capsular Teeth. — In the larger number of campanulate and ovoid fruits the capsule is 

 extensively overtopped by the calyx-tube— in these deeply sunken capsules the capsular teeth are usually 

 included, but they are prominently exsert in E. oleosa, E. salmonophloia, whilst the obconic fruits must 

 obviously have exsert capsular teeth. Apart from the exsert or included position of the teeth, their shape 

 and length offer considerable variation, and may be usefully employed as minor distinctive specific 

 characters. 



1. Capsule-cells.— The number of the fruit cells varies from three to six, and is not constant for 

 each species, though a given number may largely prevail. 



It may now be- concluded that by the employment of a carpological system in the classification 

 of the Eucalypts. we have several factors available, which, taken in their varying combinations, permit 

 of a more detailed classification than is possible by the use of any other single structure; if to the fruit 

 we add the characters afforded by the pedicels which usually can be found with the fruits, then increased 

 means of discrimination are afforded. . . . 



Series A. — Ovoid, medially inflated, attenuated below, truncated above the midlle. 

 1. Ovoid. 



E. Behrian-a. E. diversicolor. 



E. hcemastama. E. maculata. 



E. popitlifolia. E. redunca. 



E. piperita. E. oleosa. 



E. pauciflora (coriucea). E. patens. 



E. mdliodora. E. uncinata. 



/•.'. obliqua. E. salmonophloia. 



E. salifjna. E. trachyphhia. 



E. marginata. 



'J. Ovoid-oblong. 



E. crebia. E. piinelata. 



E. corymbosa. E. Planckoniann. 



E. occidenlalis. E. salubris. 



E. rohiisia. E. tetragona, 



E. slrieta. E. buprestium. 



E. leucoxylon. E. goniocalyx (elcepftora is meant), 



E. Landgdowneatm. 

 3. Ovoid-conic, passing to Series Biconic. 



E. amygdalina. E. largiflorens (bicolor). 



E. acme ni aides. E. santalifolia (pars). 



E. odorata. E. capitdlata (pars), 



E. panicvlala. E. Gunnii, 

 B 



