122 LXV. CAMPANULACEiE. 



juice usually milky. Leaves alternate or very rarely opposite, usually undi- 

 vided aud toothed, rarely deeply pinnatifid, without stipules. Flowers her- 

 maphrodite or very rai'ely unisexual, either axillary solitary or clustered or in 

 terminal spikes racemes or leafy panicles. Corolla frequently blue or white, 

 more rarely pui-ple or red, very rarely yellow. 



A considerable Order, most abundant in the temperate regions of the northern beini- 

 si)hcro and in S. Africa, but extending also over the tropics both in the New and the Old 

 ^Vorld. ^ The limits of the genera are as yet very unsatisfactorily determined. Of the four 

 Australian ones as at present constituted, two extend over nearly the whole range of the 

 Order, a third, Pmtia, is limited to the extratropical regions of the southern hemisphere, 

 unless it be deemed to inchidc the tropical Asiatic PuM;?^/ci///^, the {o\xd\\, Isotoma,^^ 

 either strictly Australian or may be extended to include a very few South African as well as 

 European species. 



Corolla usually irregular. Anthers united roimd the style. Ovary 

 2-celled. (Iiobellese.) 



Corolla-tube slit open to the base, the limb very Irregular 2- 

 lipped. J o > 



Capsule opening between the calyx-lobes in 2 loculicidal valves . 1. Iohelta. 

 Fruit, often succulent, cither iudehiscent or bursting irregularly 



below the calyx-lobes • , . • 2. Tkatia. 



Corolla-tube entire or very shortly slit, the limb spreading, nearly 



regular or oblique g. Tsotoma. 



Corolla regular, campanulate. Anthers free. Ovary 3- to 5-cclled . 4. WArtLENBEiiof^- 



1. LOBELIA, Linn. 



(Rapiintium and Grammatotheca, Presl ; Holostigma, Don.) 



Calyx-tube hemispherical, turbinate ovoid oblong or rarely linear, limb of 

 5 lobes, open or reduplicate- valvate in the bud. Corolla slit open on tk 

 upper side to the base, 5-lobed, the 2 upper lobes usually shorter, more deeply 

 separated and erect or curved upwards, forming- a more or less distinct upper 

 lip, the 3 lower spreading in a lower 3-lobcd lip. Stamens inserted at the 

 base of the corolla, sometimes verv shortly adnate to it, the filaments often 

 united above the middle; anthers 'united in an oblique or slightly incurved 

 ring round the style. Ovary 2-celled. Stigma broadly 2-lobed and often 

 surrounded by a ring of retractile hairs. Capsule opening loculiciW 

 wxthm the calyx-lobes in 2 valves, rarely splitting also longitudinally hem 

 the calyx-lobes when old.— Herbs, often acrid with a milky juice, the Aus- 

 tralian ones either annual or creeping and rooting at the base. Pedicels ij 

 flowered, either axillary or terminal or in terminal racemes, sometimes bearing 

 2 small bracteoles, which are never constant in the same species. Floffe^' 

 m a few species dioecious by the abortion or sterility of the anthers in JJ 

 females, and the imperfection of the undivided stigma and abortion of tn^ 



ovules ill tlie males^ 

 Th 



but chiefly 



rIol>e» 



•^» - Ai — . . * , """ ^'^^A^^.iii.aj ouuiu iiinca, anu Australia, inen^ *"»- —— . -. - 



species withm the tropics both iu the Old and in the New World, but none in Northern Asia , 

 and m Europe the few species known are strictly western or Mediterranean. Of !i^ 

 Australian species two are also in S. Africa, one of them, a maritime one, extending to ^« 

 Zealand and extratropical South America, the remaining 16 are all endemic. 



Sect. I. Holopogou.- A lli/ie auikers bearded pipped with a tuft of short r¥ 



