22 . AUTHOR'S METHOD. [BOOK i. 



nature: usually they are at the top of the fruit, and equal in number to the 

 cells; sometimes they are twice the number; occasionally they resemble little 

 pores or holes below the summit, as in the Antirrhinum. 

 Examples. Digitalis, Primula, Rhododendron. 



XX. AMPHISARCA. (Amphisarca, Desv.) 



Many-celled, many-seeded, superior, indehiscent ; indurated or woody 

 externally, pulpy internally. 



Examples. Omphalocarpus, Adansonia, Crescentia. 



B. Pericarpium fleshy. 



XXI. TRYMA. (Tryma, Watson.) 



Superior, by abortion one-celled, one-seeded, with a two-valved indehiscent 

 endocarpium, and a coriaceous or fleshy valveless sarcocarpium. 

 Example. Juglans. 



XXII. NUCULANIUM. (Nuculanium, Rich.', Bacca, Desvaux.) 



Two or more celled, few- or many-seeded, superior, indehiscent, fleshy, of 

 the same texture throughout, containing more seeds than one, improperly called 

 nucules by the younger Richard. This differs scarcely at all from the berry, 

 except in being superior. 



Examples. Grape, Achras. 



XXIII. HESPERIDIUM. (Hesperidium, Desv., Rich.) 



Many-celled, few-seeded, superior, indehiscent, covered by a spongy separ- 

 able rind; the cells easily separable from each other, and containing a mass 

 of pulp, in which the seeds are embedded. The pulp is formed by the cellular 

 tissue, which forms the lining of the cavity of the cells : this cellular tissue is 

 excessively enlarged and succulent, is filled with fluid, and easily coheres into 

 a single mass. The external rind is by M. De Candolle supposed to be an 

 elevated discus of a peculiar kind, analogous to that within which the fruit of 

 Nelumbium is seated; and perhaps its separate texture and slight connexion 

 with the cells of the fruit seem to favour this supposition. But it is difficult 

 to reconcile with such a hypothesis the continuity of the rind with the style 

 and stigma, which is a sure indication of the identity of their origin; and it is 

 certain that the shell of the ovarium and the pericarpium are the same. The 

 most correct explanation of this structure is to consider the rind a union of 

 the epicarp and sarcocarp, analogous to that of the drupa. 



Example. Orange. 



Sect. 2. Fruit inferior. 

 A. Pericarpium dry. 



XXIV. GLANS. (Glans, Linn., Desv.\ Calybio, Mirb.\ Nucula, Desvaux.) 



fig- 166. 



One-celled, one- or few-seeded, inferior, indehiscent, hard, dry ; proceeding 

 from an ovarium containing several cells and several seeds, all of which are 

 abortive but one or two; seated in that kind of persistent involucre called a 

 cupule. The pericarpium is always crowned with the remains of the teeth 

 of the calyx; but they are exceedingly minute, and are easily overlooked. 



