42 CRUCIFERJE. [!BERIS. 



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

 minutely ciliate. Flowers J-J in. diam., 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. Yery bitter. 



20. TEESDA'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. xmdicau'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 T ^ in. diam., hoinogamous, 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, 1ST. Africa, W. Asia to N.W. India. ETYM. Miss 

 Hutchim, a zealous Irish botanist. 



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

 Limestone rocks W. of 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 ^^ in., on horizontal pedicels, in a short 

 raceme; style distinct; seeds pale. 



22. ISA'TIS, 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 -eel led, 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. 



