SISTAPIDENDRON. 
29 
shaped compressed 2 -edged seedless beak, the valves subpro- 
minently 5-nerved. — Brot. i. 585 ; EB. t. 1677 ; DC. i. 220 ; 
Sm. E. FI. iii. 222 ; WB. i. 77 ; Koch 60 ; Bab. 27 . — Bonannia 
officinalis Presl 99. — Herb. ann. Mad. reg. 1, 2 5 rr. Occasionally 
in the neighbourhood of Funchal, hut merely as an outcast or 
straggler from gardens. Apr., May. — St. 1-2 ft. high, and with 
the 1. more or less hispid but always more so than the 1. FI. 
y. rather large. Pods spreading. Seeds pale. — This is the 
“Mustard” so commonly grown with “Cress” ( Lepidium sativum, 
L.) in Europe for winter or early spring salads. It has very 
slender claims however to a place in the Madeiran Flora. 
10. SlNAPIDENDRON Lowe. 
1. S. frutescens (Ait.) Lowe. 
Shrubby mostly smooth much branched, branches interlacing 
fragile, 1 . crowded towards their ends stiff more or less fleshy, 
the lower oblong-lanceolate or elliptic-ovate regularly and di- 
stinctly serrate or crenate, the uppermost linear-lanceolate or 
linear quite entire ; sep. at first erect presently subpatent im- 
maculate. — Var. : 
a. diffusa ; branches long slender tufted often pendulous, 1. less 
fleshy more distinctly veined serrate and more or less sprinkled 
with short adpressed strigose hairs. — S. frutescens Prim. 37. 
Sinapis frutescens Sol. ! MSS. and BH. ; Ait. ! Hort. Kew. iv. 
127 ; DC. Syst. ii. 623 ; Prod. i. 220 ; Hook. Bot. Misc. i. 119. 
t. 28. Hesperis diffusa Buch ! 196. no. 315 ; Spr. Syst. ii. 900. — 
Shr. per. Mad. reg. 3, 4 ; £. Rocks in ravines and highest peaks ; 
Rib. de Santa Luzia on high rocks by the Waterfall, Caminho 
Central along the ridge dividing the Curral das Freiras from the 
Serra d’Agoa and under Pico Grande ; Pico dos Arrieiros, &c. 
April- July. 
(3. succulenta ; branches short stiff and thickish forming a low 
dwarf stunted shrub, 1 . in terminal rose-like tufts very thick and 
fleshy veinless obsoletely crenate perfectly smooth. — Shr. per. 
Mad. reg. 2 ; r. Sea-cliffs on the N. coast in several places 
between Santa Anna and S. Vicente ; Vista da Rocha do Navio, 
Santa Anna ; S. face of the Penha d’Aguia between Fayal and 
Porto da Cruz. May- July. 
Branches often in a 3 or 4 ft. long interlaced and hanging in 
thick tangled tressy masses down perpendicular rocks : in /3 more 
erect. L. bright but rather pale gr. not glaucous. FI. like those 
of Brassica nif/ra L. rather large bright lemon-v. ; claw of pet. 
and fil., especially in /3, purplish lilac. Sep. with a few short 
scattered hairs and even in [3 pale immaculate. Pods 1-2 in. 
long with a short cylindric seedless beak erecto-patent flexuose ; 
