; ;,5 .; ^ _, . • . . ' , A' ■- ^'■■' ■- - ; ' - ■■ ■ ^ - 



•720 Lxx. UMBELLiFER^. (C.B.Clarke.) [Psammogeton. 



and Cabul.— Very unlike the type, but there are intermediate fornis. Probably 

 P. brevisetum and setifolium, Boiss. Fl Orient, ii. 1079, are other varieties. . :.[_ 



. T - DOTJBTFTJL UMBEXLIFERJE* 



SisoN TEiNERTE, ^a?;». lu Lou Prodr, 184; Z'C. Prodr, iv. 111. ^ 



'^ ■ Athamantha gigantea, Bon Frodr, 184 ; DC. Prodr. iv. 156. 

 Athamantha teres, Bon Prodr, 185; DC. Prodr, iv, 156. 



LiausTicuM Pnepalense, Bon Prodr, 125; DC. Pro^r. iv. 159- ^(An Hymeno- 

 l^na? Da /.e.) * ' 



^ ■ ■ - ■ 



M r 



r 



'-> 



^ F 



Order LXXI. ARAZiXACES:. (By 0. B. Clarke.) 



. ' Trees or shrubs, very rarely herbs, sometiraes scandent or scandent when 



young and finally self-supporting, not rarely prickly. Leaves alternate, tne 

 ' uppermost rarely sub-opposite, long-petiole^, large, simple or comppuna , 

 , stipules adnate to the petiole, sometimes inconspicuous or 0. Flowers regular, 

 small, sometimes polygamous, in umbels racemes or panicled heads ; orac 

 and bracteoles small or conspicuous ; pedicels continuous with the base o 

 the calyx or tbere jointed. Calyx-tube adnate to the ovary ; limb truncate, 

 obsolete gr with small teeth. Petals 5 rarely 6-7 or many, valvate or sud- 

 . imbricate, expanding or deciduous in a cap. Stamens as many as and alterna 

 with the petals (very many in Tupidanthus) , inserted round an epigynous disc. 

 ^ Ovary ^ inferior, 2-celled, or cells as many as the stamens (in Arthrophymm 

 l-celle'd); styles as many as the cells, distinct or united; ovules solitary an 

 pendulous in each cell. Fruit coriaceous or drupaceous usually small, one o 

 ' more cells sometimes suppressed. Seed pendulous, albumen uniform or ruin - 



■ nated; embryo minute, radicle next the hilum. — Distrib. Species 340, cmeny 

 \ ' tropical and subtropical, a few in the cool temperate zones, 



■ r Sect. I. Aralieae. >e^a;8 imlbricated (but only lightly). Perficc/s jointed. 



' Styles 2-5, free. Leares compound ........ 1. Aralia, ^ ■ ' ^ 



Styles 5, combined ^ . 2. Pentapanax. 



■ Styles 4-3, free. Leaves pinnatifid . ! ! 8. AfiALiDnJM. ^^v 



Sect. n. Fanaceae. Petals valvate. Albumen uniform. 



,..*, Ovary 2-ceUed. '^ ^^>:.; 



Pedicels jointed. Leaves decompound . 3.*Panax. y 



r'y Pedicels continuous. Leaves digitate 4. AcanthopanAX. 



* T * 



** Ovary A-lO-celled. -Xp^ 



t Umbels sessile on the back of the leaf. . '^^ 



Leaves simple 5. Helwingia. ;H 



tt Pedicels jointed. '^"^ ' 



Leaves once pinnate 6. PoltsciaS. . 



ttt Fedicels continuous. Leaves not pinnate. ■ : :^y\ 



Fruit angular the size of a pea .... . ' . .' . 7. HEPTAPLEUBtiJf. 



;; Fruit more than ^ in. long . . .^ / i "i ; [ [ [ . . : 8/ Trevesia. ^ 

 ^Flower sessile embraced by 4 bracteoles i ; .' . '■. . " X % BrassAIA. 

 ^ Leaves simple (except the lowermost) V ' . 'X'-^ / V'w ■ V '»^ 10. DendhopanAX. . 



. ■ . .> ■'. ' w . :; ^" -■ ■■ ^ y .:■-■- -■■ - .^ - ■ ■■= ^' ■ ' - f -:.- ■ ■".- ■■.■-■'■ ' ■■>" ■ --'■■■'■- " -■' 



■ ■' :-' '--s"V''- '.- ._'- ■■_-.^ ■ - ^^ V ' /-■- ^: .^ -:'. . ■ -. -r ',^ -..-■■■ . ? - ■ ^ ■ ; ,' ' .; ^ .- , '■■ ■ _ ,:. 



-'-.:'■ y.-.- — — ^■^vA>v^-,^: ■^.■^- .r'^ ■-:-^ -vv^'^-^ ■-. "V:^> .-'■■. ^- .-V':: -^ 



- L ■ ^ 





