920 LXVm. CAMJ'ANULACfi^. [Pratid. 



1. P. erecta (upright), Gaudich. in Freyc. Voy. Bot. 456; Benth. Fl. Austr. 

 iv. ]33. Glabrous with a perennial rootstock and branching prostrate ascending 

 or erect stems from a few inches to nearly 1ft. long, but usually under 6in. 

 Leaves sessile or nearly so, ovate oblong or lanceolate, serrate, J to lin. long, 

 rather firm. Flowers axillary, the pedicels either very short or rarely as long as 

 the leaves. Calyx-tube in the males very shortly turbinate or scarcely any, 

 ovoid in the females, the lobes lanceolate, i to f line long. Corolla 2^ to 3 lines 

 long, the lobes lanceolate, nearly equal, but the 2 upper more deeply separate. 

 Anthers in the males glabrous, the 2 lower ones tipped with a tuft of minute 

 bristles, all empty or abortive in the females. Fruit nearly globular, 8 to 4 lines 

 diameter, slightly succulent. — Lobelia concolor, K. Br. Prod. 663 ; Isolobus 

 concolor unA 1. Cunningliamii, A. DC. Prod. vii. 854; Pratia Cunninghamii, Hook, 

 f. Fl. 'Antarct. i. 42. 



Hab.: Suttor Eiver, i: v. Mueller ; Eockhampton andBowen Biver, Bowman; in the interior, 

 Mitchell. This herb is poisonous to stock . 



2. P. puberula (puberulent), Benth. Fl. Austr. iv. 133. A small creeping 

 or prostrate perennial, more or less pubescent. Leaves sessile, ovate or almost 

 orbicular, toothed or almost entire, mostly 2 to 4 lines, rarely fin. long. Flowers 

 axillary, the pedicels shorter or rarely longer than the leaves. Calyx-tube in the 

 males very short or almost none, in the females ovoid, the lobes lanceolate, acute. 

 Corolla about 3 lines long, the lobes nearly equal, but oblique and almost acute. 

 Anthers in the males glabrous, the 2 lower ones each with a single minute bristle, 

 empty or abortive in the females. Fruit globular, about 3 lines diameter, slightly 

 succulent. Seeds rather large, ovoid or compressed. 



Hab.: Inland towards Cooper's Creek. 



3. P. peduncuiata (pedunculate), Benth. Fl. Austr. iv. 133. A very 



slender and slightly pubescent perennial, the intricate filiform creeping or 

 prostrate stems extending to broad patches, with very shortly ascending flowering 

 branches. Leaves almost sessile, ovate or orbicular, with few prominent teeth, 

 2 to 3 lines diameter. Flowers small, usually white, on slender axillary pedicels 

 considerably longer than the leaves. Calyx-tube very short in the males, 

 obconical in the females, the lobes narrow-lanceolate, obtuse. Corolla 2 to 

 2f lines long, the lobes nearly equal but very oblique. Fruit very small, 

 pubescent, globular, not seen quite ripe, but evidently without the conical 

 2-valved summit of Lobelia.— Lobelia peduncuiata, R. Br. Prod. 563 ; A. DC. 

 Prod. vii. 367 ; Hook. f. Fl. Tasm. i. 237 t. 69 B. 

 Hab. : Southern looalities, 



3. ISOTOMA, Lindl. 



(Sections of flowers equal.) 



(Lobelia, sect. Isotoma, B. Br.; Enohysia {partly), Presl; Laurentia (partly), A. DC.) 



Calyx of Lobelia. Corolla-tube cylindrical, entire or rarely very shortly slit 



on the upper side ; lobes 5, nearly equal, spreading, either quite horizontal or 



very shortly and obliquely campanulate at the base. Stamens inserted near the 



summit of the corolla-tube. Anthers of Lobelia, the upper ones without terminal 



tufts. Pistil, capsule, and seeds of Lobelia. — Herbs, with the habit of various 



species of Lobelia. Flowers axi-ljiary or in terminal racemes or solitary, on long 



scapes or peduncles, hermaphrodite in all the species known. 



A small genus, perhaps too artificially distinguished from Lobelia, but the entire tube and 

 epicorolline stamens are so exceptional in Lobelieee that there may be a convenience in keeping 

 it up. It is here characterised from the Australian species alone, which are all endemic. — 

 Benth. 



