PL ex. t/ial. SO. CRUCIFERS. 439. Teesdalia. 693 
Teesdalia irregularis . Irregular heath-cress . 
Leaves lyrate ; petals irregular. 
Nasturtium petrseum, Raii Syn. 303, 2. 
Bursa pastoria minima, Ger. em. 276, 2. 
Iberis nudicaulis, Lin. S. P. 907. 
Teesdalia nudicaulis, R. Brown in Hart. Kew. 4, 88. 
Shepherd's cress. Small shepherd's purse. 
Barren heaths; annual; May. 
Stems many, mostly simple ; central upright, stiff, mostly 
leafless; side-stems ascending, leafy; root-leaves lying flat ; 
corymli at first in heads, become racemose. 
XXIII. 440. IBERIS. Dioscorides. Candy-tuft . 
Siliculce nicked, valveless, boatshaped, winged ; cells 
1 -seeded; petals unequal. 
Iberis amara. Bitter candy-tuft . 
Plant herbaceous ; leaves lanceolate, rather pointed, 
slightly toothed, bald ; flowers racemose. 
Thlaspi amarum, Ger. em. 263, 5. 
Iberis amara, Lin. S. P. 906. 
Clown s mustard . 
Chalky fields ; annual ; July. 
Herb bald, bitter ; stems diffused, branched ; leaves lan- 
ceolate ; corymbi spiked, many-flowered ; petals white. 
XXIV. 441. LEPIDIUM. Dioscorides. Pepper-wort . 
Siliculce 2-valved ; valves boatshaped ; cells 1 -seeded ; 
petals equal. 
a. Lepidium. Siliculce not nicked , margined all round. 
1. Lepidium latifolium. Broadleaved pepperwort. 
Ixaves lanceolate, undivided, serrated or uncut; siliquce 
oval, not nicked. 
Lepidium latifolium, Raii Syn. 304 ; Lin. S. P. 899. 
Raphanus sylvestris officinarum Lepidium, ./Eginetae Lobelii, Ger. em. 
241,2. 
Piperitis, sive Lepidium vulgare. Park. 855. 
Dittander. Pepperwort. 
Salt marshes and cliffs by the sea ; perennial ; July. 
Stem 3 feet high, upright, branched, panicled ; leaves 
f laucous, pointed ; petals white, not cut ; stamens 6. — 
l lant acrid, antiscorbutic; in infusion vomitive. 
