28 
5. CRUCIFEBJE. 
out name or number, viz. JErucastrum incanum Koch, EBS. 
t. 2843 ( Hirschfeldia adpressa Moench, WB. i.85), which is found 
in Teneriffe but has not yet occurred in Madeira. 
An old S. of Europe specimen (Herb. D ni Yalden 1778) of 
Diplotaxis muralis ft. DC. in the BH. has been formerly marked 
Brassica muralis ; and, though totally unlike any pi. with which 
I am acquainted in Madeira, is the only semblance of authority 
I can discover for Brassica muralis of Buch’s List of Mad. pi. 
p. 196. no. 317. His no. 311, Cheiranthus littoreus, ought also 
to have been quoted above under Matthiola maderensis ; and 
nos. 312 and 313 ( Cheiranthus argutus and dentatus) both under 
Cheiranthus mutabilis, of which Ch. dentatus is merely the more 
hoary narrower-leaved form from more exposed or sunny rocks, 
such as are indicated by the locality, “ Ribeira dos Soccoridos,” 
of the original specimens in BH. 
9. Sin apis L. 
1. S. ARVENSIS L. Wild Mustard or Charlock. Mostarda, 
Madeira; Saramayo , Porto Santo. 
L. ovate-oblong unequally toothed, the lower sublyrate or 
auriculate at the base, the upper sessile ; sep. spreading ; pods 
subcylindric torulose not shorter generally longer than the 
conical 2-edged seedless beak, valves subprominently 3-nerved. 
— Koch 60; Bab. 27. — Herb. ann. Mad. reg. 1, 2, ccc; PS. reg. 
1, 2, c ; Gl). reg. 2, c. Cornfields and vineyards in waste 
ground everywhere. Nov. -June. — St. 1-2 ft. high diffusely 
branched bristly towards the base with short defiexed hairs. 
Whole pi. scabrous. FI. y. rather large. Pods suberect about 
an inch long including the long distinct beak, when ripe manv- 
ribbed or angular. Seeds brown. — Yar. : 
«. Pods smooth. S. arvensis (L.) Brot. i. 584; EB. t. 1748; 
I)C. Syst. ii. 615; Prod. i. 219 ; Sm. E. El. iii. 221 ; Presl 96; 
WB. i. 78. S. incana Lowe in Hook. Bot. Misc. New Ser. i. 42 
(not of others)! 
ft. Pods retrorsally hispid. S. arvensis ft. Koch 1. c. S. ori- 
mtalis Brot. i. 584. — A Madeiran specimen of this var. in BIT., 
with the lower part of the pod and often of the beak retrorsally 
hispid, has been ticketed “ Sinapis alba Linn.” by Solander. 
ttf2. S. ALBA L. White Mustard. 
L. lyrato-pinnato, pinnae unequally and coarsely toothed and 
lobed, the uppermost confiuent; sep. spreading; pods hispid 
cylindric torulose not longer generally shorter than the sword- 
