Cockayne. — On Lieusticum trifoliatum. 425 



'to 



Kowai Eiver, altitude 2,000 ft. -3, 000 ft. " — but was always 

 unsuccessful, and it was not until last April that, while in 

 company with Professor A. Dendy, I stumbled across the 

 plant by the merest accident, growing not by the side of 

 streams, but in Sphagnum swamps. Several living plants 

 were secured; these have thriven, bloomed, and fruited under 

 cultivation, and so I am enabled to publish an amended de- 

 scription. The point of interest is that, as Hooker hinted, 

 the plant is not a Ligusticum, but an Angelica, and so the 

 name must be changed to Angelica, trifoliata. 



Angelica trifoliata. 



A tufted low-growing marsh plant with spreading flowering 

 branches, 6cm. or 7cm. high, and creeping underground stems. 



Stem (portion above ground) very short or 0, brown, 

 covered with remains of old leaf-sheaths. 



Leaves in very large specimens 7 cm. long, usually not 

 more than half that length or smaller, trifoliate, pinnate or 

 pinnate with ternate leaflets, with petioles as long as or 

 longer than the rhachis ; leaflets in one or two rather dis- 

 tant opposite pairs, simple or ternate, very variable in shape, 

 showing many forms of transition from simple to compound 

 leaves, rhombeo-orbicular, with cuneate base, flabellifoi-m, 

 cuneate or orbicular-cuneate, with upper usually rounded 

 half of margin broadly serrate, sometimes trilobed, unequally 

 bilobed or trifid, with cuneate base entire, coriaceous, green 

 or brownish-green on upper surface, glaucous on under- 

 surface ; venation much reticulating, primary veins terminat- 

 ing in a small, swollen, pale apiculus at apex of each tooth; 

 margins slightly recurved ; petiolules semi-terete, channelled, 

 from 6mm. to 2mm.; petioles semi-terete, narrow-channelled, 

 sheathing base of flowering shoot and stem with a very 

 broad sheath 4 mm. long, having broad pale-coloured mem- 

 branous margin. 



Umbels compound, 3- to 5-flowered, pedicels lengthening 

 after flowering ; with sheathing amplexicaul bracts similar in 

 shape, &c., to the leaves but smaller, sometimes much reduced 

 and linear. 



Flowers 1-5 mm. to 2 mm. in diameter; calyx-limb very 

 short, acute ; petals white, emarginate at rounded apex oy 

 divided into two unequal lobes ; styles 1 mm. long, erect, 

 spreading. 



Fruit 4-5 mm. long x 3 mm. broad, oblong, dorsally com- 

 pressed, with three prominent ribs on middle third, and two 

 coriaceous lateral wings, each 1-5 mm. broad. 



Hab. Terrace of Eiver Kowai, on right bank, altitude 

 690 m. ; swampy ground, vicinity of Porter's Pass, altitude 

 900 m. : amongst S-phagnum. 



