392 GUTTIFERALES. [HYroGYXous Exogens. 



Alliance XXX. GUTTIFERALES.— Tim Guttiferal Alll\nce. 



Diagnosis. — HypogynoiLS Exogens, toith monodichlanujdeous flowers, axile placentce, an 

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

 little or no album£n. 



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

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

 they nearly correspond in their stinicture. 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 polyaudrous fonn of the latter. It is 

 however customary to find no want of s^Tnmetry 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 theu' abundance of resin. 



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

 towards the dicUnous structiire 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. Flowers^ i 



symmetrical. Petals equilateral. Calyx unequal, permanent, K\-],\. Dipterace.e, 



winged. Anthers beaJced. Fi'u it one-celled, one-seeded . .J 

 Leaves simple, alternate, without stipules or with vei^ small ones. ~\ 



Flowers symmetrical. Petals equilateral. Anthers versatile. \- 142. Ternstromiace^. 



Seeds few or single. Stigmas on a long style J 



Leaves digitate, opposite . Flowers symmetrical. Petals equi-'\ 



lateral. Stigmas sessile. Seeds solitary. Embryo with an 1-143. Rhizobolace^. 



enormous radicle J 



Leaves simple, opposite, loithout stipides. Flowers symmetncal. 1 



Petals equilateral. Antliers adnate, heakless. Seeds solitary K 144. Clusiace-e. 



or few. Stigmas sessile, radiating J 



Leaves simple, alternate, without stipides. Floioers unsyni-1 



metrical. Petals equilateral. Anthers versatile. Seeds > 145. Marcgraviace.e. 



innumerable, minute. Stigmas sessile J 



Petcds oblique, glandular. Seeds numerous, nalced. Styles}-, .r, TT^-T,i.t>T/..r.r.i. 



long, distinct J 



Petals oblique, gla/ndless. Seeds few, shaggy. Styles long, 1 i i 7 t> 



distinct r ^eaumuriace.e. 



