190 NATUBAL HISTORY OF PL.iXTS. 



are berries (figs. 225, 226); each ovary becomes an indehiscent 

 stipitate mass, the thick pericarp projecting inwards to form short 

 septa between the seeds, and dividing it into a certain number of 

 one seeded compartments. The seed contains ruminated fleshy 

 albumen, near the apex of which is the small embryo (fig. 228). 

 On this side is a but little marked arillary thickening, beside the 

 micropyle and the umbiHcal scar' (fig. 227). 



A. trUoha is a shrub with alternate simple exstipulate leaves. Its 

 flowers, solitary, and usually pedunculate, arise from the axils of 

 some of the lower leaves of the last year's branches.* A. parviflora 

 jyM'ii,^ (jr(ui(li/loraJ)\j'S* and y>j(//;//^/'*7 Dun,* have a similar organization, 

 and are natives of the same regions, i.r. the most southern part of 

 North America. Accordingly, all authors are agreed in retaining 

 them in the same genus as J. triloba; so rightly refusing to take 

 into account the few unimportant differences presented by some of 

 these species, whether in the form and relative size of the pieces of 

 the two corollas/ or in the mode of aestivation, which becomes 

 quite valvate, for the inner petals' when they are short have thick 

 edges. 



Under the name of Fifzalanict has been described an Australian 



' M. T. CAurEL (Sfudi sulla polpa che involve nearly a year before the flowers come out we can 



t sfitni, &c., in Ann. del Mus. di Firenze, 1SG4) predict whether they will be abundant in the 



has shown ("J, t. i., figs. 1-7) that in the fruit next spring. 



of A. triloba the pericarp surrounds the seeds ^ Uvaria parvijlora ToBB. & A. GfiAT, loc. 



with a sort of pulpy Heshy sac, and thinks this cit., n. 2. 



the organ considered the aril of Asimina by * Orchidocarpum grandijlorum Micnx., loc. 



Asa Guay {Oen. Fl. N.-Amer., i. 65). Notliing cit. — Ucario ohovata ToKU. & A. Gray, n. 3. 

 can be more correct, and this sac simply rejjre- ' Anona pi/gm<ta KaktIv. — Ucaria pyynuea 



sents a part of the pericarp api)lied to the seed, Tohb. & A. Gkay, n. 4^ 



80 as to come otV with it. Hut besides this there * See Adansonia, viii. 302. In the flowers of 



is at the apex of the seed, around the micropyle U. parrijlora ToRB. &. Gr. the inner petuls 



and by the hilum, an ill-defined thickening of are smaller than the outer ones, but of similar 



the outer seed coat, which represents a rudi- form. In U. triloba there is a time when both 



mciitiiry aril ; this in certain ^4«on^/«fB is much sets are of nearly equal long; h. The iiuier petals 



more develoj>ed, forming a more or less project- of U. obora/a are by far tin- shorter, and in every 



ing i)ad, or even a whitish fleshy body with two. resi)ect like those of sevend Monodoras. The 



lat4.'nil auricles or wings that are sometime-i very base tapers to a claw, and the dilateil apex is 



prominent. (See Adiiii.iunia, viii. 333.) almost the sha])e of an arrowhead. Thesf three 



' The recurved i)eduncle is covered with the petals converge to form a sort of vault witli thri<c 



same brown hairs that are found abundantly on pillars. In 17. pi/tfuxra the form and arrnnge- 



the outer surface of the cjilyx, and also on the ment of the inner ]M.'taU is the same; but the 



bracts that enveloped the (lower when young and difierencc of size between them and the outtT ones 



during the winter. Tliese brads, of variable is less decidiil. 



numlnir (there are sometimes oidy two), separate ' The inner i)etal8 of U. pifqimra and ohovata 

 from the peduncle and l.iU ofl' wlien the llower only touch by their thickenwl Lorders in this 

 expands. The flowers preferably occupy the axils dilated almost sagitUite part, which ex icily ro- 

 of the first two or three leaves of the last year's calls the conformation of the pieces of the inner 

 branch. As early as .lune we can recognine what cmdla in s*'vend Monodoras. 

 axils will be occupied by flower bnds, »» thut " F. .Mukll., Fraym. Pkyt. Auilral., iv. 33. 



