Pachycladon. | , CRUCIFERAE. 469 
4. PACHYCLADON Hook. f. *So. 
A short stout depressed alpine herb, clothed with stellate pubescence. 
Rootstock long, thick and fleshy. Leaves small, rosulate. Flowers small, 
white. Sepals equal. Petals with long claws. Stamens free, toothless. 
Pod laterally compressed, linear-oblong; valves boat-shaped, keeled, not 
winged; nerves obscure; septum imperfect. Seeds 3-5 in each cell, 
obevoid ; funicles short. Cotyledons incumbent. 
The genus consists of a single species, confined to the southern portion of the 
Dominion. Sir J. D. Hooker remarks that in technical characters it is intermediate 
between the tribes Sisymbrieae and Lepidineae, but is probably referable to the latter. 
1. P. novae-zelandiae Hook. f. Handb. N.Z. £1. (1864) 724—Root very 
long, fusiform, stout and fleshy, as thick as the finger, in old specimens 
branched above, crowned with a dense rosette of imbricating radical leaves. 
Leaves ¢-lin. long; blade oblong, pinnatifidly lobed, gradually narrowed 
into a short flat petiole, clothed with stellate pubescence. Cauline leaves 
few, smaller, digitately lobed. Peduncles numerous, springing from below 
the leaves and slightly longer than them, 2-5-flowered, Petals obovate- 
spathulate, almost twice as long as the sepals. Pods on short stout 
pedicels, +—tin. long, laterally compressed ; valves keeled, not winged. 
Seeds 3-5 in each cell, obovoid, red-brown.—Ic. Plant. (1867) t. 1009 ; 
Buch. mm Trans. N.Z. Inst. xiv (1882) t. 24, f.1; 7. Kirk Students’ FI. 
(1899) 32. Braya novae-zelandiae Hook. f. Handb. N.Z. Fl. (1864) 18. 
SoutH Isnanp :- Otago—Mount Alta, Hector and Buchanan / Mount Bonpland, 
Cockayne ; summit of Rock and Pillar Range, Mount St. Bathan’s, Mount Pisa, 
Mount Kyeburn, Mount Cardrona, &c., Petrie / 4500-6500 ft. 
A very singular plant. Mr. Buchanan’s P. glabra (Trans N.Z. Inst. xiv (1882) 
t. 24, f. 2) is a form with rather larger and almost glabrous leaves, with sharply 
pointed ascending lobes. It passes insensibly into the ordinary state. 
5. CAPSELLA Medicus. 
Annual or rarely perennial branched herbs, of small size and weak 
habit, glabrous or pilose. Radical leaves entire or pinnatifid. Flowers 
small, white, racemed. Sepals spreading, equal at the base. Petals 
short. Pods oblong, ovoid, or obcordate, laterally compressed; valves 
convex or poat-shaped; septum thin; style short. Seeds numerous, in 
2 rows. , Cotyledons incumbent. 
A small genus, scattered over the temperate regions of both hemispheres. 
= 4 olsetimnse «=P (eH), Wanth. Gow 
1. C.“procumbens Fries Nowt. Fl. Suec. Mant. i (182a7 14.—Slender, 
perfectly glabrous. Stems numerous from the root, 2-Gin, long, decum- 
bent at the base, ascending at the tips. Leaves }3in. long; lower 
ovate, oblong, or spathulate, entire or lobed or irregularly pinnatifid, 
petioled ; upper smaller, more sessile, often entire. Flowers white, very 
small, Racemes elongating in fruit; pedicels filiform, spreading, Pod 
ovoid, tin. long; valves boat-shaped. Seeds 10-15 in each cell.— 
Benth, Fl. Austral. 1 (1863) 81; Cheesem. Man. N.Z. Fl, (1906) 37. 
C. elliptica C. A. Mey.-in Ledeb. Fl. Alt. iii (1831) 199; 7. Kirk Students’ 
Fl. (1899) 33. 
SoutH IsLtanD: Otago—On cliffs exposed to sea-spray: Oamaru; Waikouaiti: 
near Dunedin; Petrie / Septem ber—October. 
