166 



XXXVIII. UMBELLIFER^. 



Stamens 5 altevmte with tlie petals 

 f a thick fleshy disk, at the base of 



the outer ones the largest, 

 inserted on the underside of 



the styles. Styles 2. Achenes or carpelsl, cSbVcLXchel 

 near the apex to a central axis, usually separating when rin? 

 Seed solitary, pendulous. Embryo minute, in the base of n 

 horny albumen.— Herbs. Leaves alternate generally comvovml 

 and embracing the stem with their sheathing bases. Flowers ? 

 umbels. —This Order contains many poisonous plants, especiallv 

 such species as grow m watery places ; numerous esculent and 

 aromatic ones, usually inhabitinor dry situations. Several yield 

 gum-resms ; as Assafo^tida, Galbanum, and Ammoniac, but the 

 plants themselves are not well ascertained. 



i 



I. Umbels simple or imperfectly compound. 



* Vittm 0. Albumen solid. 



1. Hydrocotyle. Fruit flat, of two nearly orbicular carpels, naked 



Calyx-teeth obsolete. 



2. Sanicula. Fruit roundish, without ribs, densely clothed with 



hooked prickles. Calyx-teeth leafy. 

 2\ AsTRANTiA. Fruit roundish, with plicate dentate ribs. Calyx-teeth 



3. Eryngium. Fruit roundish, without ribs, densely clothed with chaffv 



scales. Calyx-teeth leafy. ^ 



** Fruit with vittm. Albumen furrowed or involute at the suture. 

 39. ToRiLis. 



II. Umbels compound or perfect, 



1. (A — F.) Fruit not prickly. 



* Albumen solid. 



A. Fruit laterally compressed. 



f Leaves compound. 



J Calyx-teeth foliaceous. 



4. CicuTA. Fruit roundish-cordate. 



XX Calyx-teeth small or obsolete. Petals entire, with a straight or inflexed 



point. 



5. Apium. Involucel 0. Fruit didymous; carpels with sinrfe vitt^ 



between the ribs. 



ie carpels generally in the interstices between the ribs, are often longi. 

 i, or canals, ca ed vitt^ (Tab. I. f. 13. b.), replete with an oily or 



the coat of the 



tudnial ducts yj^ vauaia, cauuu vma; ^ ± ao. i. i. 13. b.), replete with an oily or 



ru?r/eottf "^T^h V/'i?'oi^ coloured; so that they are sometimes visible with- 

 out dis.ecUon (Tab. II. f 27 a, b.) The albumen is e\ther furrowed (Tab. III. 



*8 \ pN nV ;'off^"''' "'" ;''''"^f.' on.i'5 '""er fece or suture (Tab. III. f. 32. b., 33. b., 

 \' ThpVrnif/oV'n' .1''^" " " '^"^ '° ^^ '"^''^ (Tab. I. f. 4 b., .5. c, &c.). ' 



theJenera^ndirLfnl ,v' f "'''■'' are represented in Tabs. I.-IIL, the numbers of 

 tne genera indicating the figures in these plates. 



I' 5, 



