42 CRUCIFER^. [Iberis. 



Leaves 1-3 in., sessile, scattered, sparingly toothed or pinnatifid, often 

 minutely ciliate. Flowers J-§ in. diara., white or purplish. Pods in short 

 racemes, \ in. broad, flat ; pedicels horizontal ; notch triangular ; valves 

 narrowly winged, wings acute above ; style exceeding the wings. — Distrib. 

 W. Europe, from Belgium southd. — Very bitter. 



20. tee'sda'lia, Br. 



Small, annual, glabrous, scapigerous herbs. Leaves rosulate, pinnatifid. 

 Flowers minute, white. Sepals spreading, equal at the base. Petals equal, 

 or 2 outer larger, with a basal pouch. Stamens 4 or 6, with a scale at the 

 base of each filament. Pods broadly obovate or orbicular, notched or 

 2-lobed ; valves boat-shaped, slightly winged ; cells 2-seeded ; stigma 

 simple. Seeds 2 in each cell ; radicle accumbent. — Distrib. S. and W. 

 Europe and W. Asia ; species 2. — Etym. Robert Teesdale, a Yorkshire 

 botanist. 



T. nudicau'lis, Br. ; two outer petals twice as long as the others. T. 



Iberis, DC. 



Sandy and gravelly places ; ascends to near 1,000 ft. in Yorks. ; local in Scot- 

 land ; Channel Islands; fl. April-June. — Stems 4-18 in., usually many, 

 slender, ascending. Radical leaves 1-2 in., numerous, lobes broad, spreading. 

 Flowers ^ in. diam., homogamous, corymbose then racemose. Pods 

 & in., in racemes 2-9 in ; pedicels short, slender, spreading ; style very short. 

 — Distrib. Europe, N. Africa, W. Asia. 



21. HUTCHIN'SIA, Br. 



A small, annual herb. Leaves rosulate, pinnatifid. Flowers minute, 

 corymbose. Sepals short, equal at the base. Petals small, equal. Fila- 

 ments without scales at the base. Pods broadly oblong, obtuse, much 

 compressed ; valves keeled ; septum narrow ; stigma sessile. Seeds 2 in 

 each cell, compressed, not margined ; funicle slender ; radicle accumbent. 

 — Distrib. Europe, N. Africa, W. Asia to N.W. India. — Etym. Miss 

 Hutchins, a zealous Irish botanist. 



1; H. petrse'a, Br. ; sepals about equalling the petals. 

 Limestone rocks W. o? England and Wales, from Dumfries and Yorkshire 

 (ascending to 1,500 ft.) to Somerset ; naturalized in Eltham churchyard, 

 where planted by Dillenius ? and in Mathew cemetery, Cork ; fl. March- 

 May. — Glabrous or sparingly hairy, slender, much branched from the base, 

 2-5 in. Radical leaves f-1 in., lobes spreading, obovate, almost petioled ; 

 cauline shorter, pinnatifid. Pods fa-& in., on horizontal pedicels, in a short 

 raceme ; style distinct ; seeds pale. 



22. I SATIS, L. Woad. 



Tall, erect, annual or biennial branched herbs. Cauline leaves sagittate. 

 Flowers yellow, pedicels slender, deflexed in fruit. Sepals equal at the 

 base. Petals equal. Pods indehiscent, 1-celled, oblong obovate or orbicular, 

 thickened in the middle ; wing or margin very broad ; stigma sessile. 

 Seed pendulous from the top of the cell ; radicle incumbent. — Distrib. 



