:m 



OUTTIFERALES. 



[Hypogynous Exogens. 



Alliance XXX. GUTTIFERALES.—Tnv Guttiferal Alliaxi -k . 



Diagnosis. Hypogynous Exogens, with monodichlamydcous flowers, axik placenta, an 



imbricated calyx, an imbricated or twisted corolla, 00 stamens, and an embryo with 

 little or no albumen. 



The time passage from Sapindals into this Alliance is from Soapworts to Rhizobols ; 

 for the habit of iEsculus in the former is the same as that of most of the latter, and 

 they nearly correspond in their structure. But Rhizobols have an indefinite number of 

 stamens. It is in that respect indeed that Guttiferals principally differ from Sapindals, 

 and the former may be almost regarded as a polyandrous form of the latter. It is 

 however customary to find no want of symmetry in the calyx, corolla, and stamens of 

 Guttiferals, while the reverse is generally characteristic of Sapindals. These too have 

 seldom, if ever, resinous secretions ; while, on the other hand, those are often remark- 

 able for their abundance of resin. 



The near relationship of all the Orders here collected is undisputed. They lean 

 towards the diclinous structure in some Guttifers, and approach the diclinous series in 

 the Dipterads, which have a strong analogy to Mastworts. 



Natural Orders of Guttiferals. 



Leaves simple, alternate, with large convolute stipules. Floioers 

 symmetrical. Petals equilateral. Calyx unequal, permanent, 

 winged. Anthers beaked. Fruit one-celled, one-seeded . . 



Leaves simple, alternate, without stipules or with very small ones. 

 Flowers symmetrical. Petals equilateral. Anthers versatile. 

 Seeds few or single. Stigmas on a long style 



Lewes digitate, opposite. Floioers symmetrical. Petals equi- 

 lateral. Stigmas sessile. Seeds solitary. Embryo with an 

 enormous radicle 



Leaves simple, opposite, without stipules. Flowers symmetrical. 

 Petals equilateral. Anthers adnate, bealiess. Seeds solitary 

 or few. Stigmas sessile, radiating . 



Leaves simple, alternate, without stipules. Floioers unsym- 

 metrical. Petals equilateral. Anthers versatile, 

 innumerable, minute. Stigmas sessile 



Petals oblique, glandular, 

 long, distinct . . • 



Petals oblique, glandless. 

 distinct 



Seeds 



141. DlPTERACE.E. 



142. Ternstromi k 



143. Rhizobolai 1. 1 



144. Clusiace.e. 



145. Marcgravim 



Seeds numerous, naked. Styles} j^g Hypericace b, 



Seeds few, shaggy. Styles l<mg>\\n. Reaumuriace«, 



I 





