ORDERS, GENERA, AND SPECIES. 205 



456. Ribes nigrum, ; April 26 ; Central Scotland 

 southwards, wild in Lake District and Yorkshire. p. 29 



457. Ribes rubrum, ; April 28 ; Scotland, N. Eng- 

 land, p. 29 



458. Ribes alpinum, 35 ; April 17 ; Scotland, N. 

 England. p. 29 



459. Ribes grossularia, ; April 2 ; many counties, 

 especially N. England. p. 30 



Order 37. Crassulaceae. Stamens 3-20, inserted on the 

 base of the sepals ; petals and sepals 4-12 ; ovaries 

 superior, as many as petals ; mostly low, succulent 

 herbs with small, starry, regular flowers. 



460. Tittcea muscosa, 8 ; May 23 ; Norfolk to Hants 

 and Devon, Channel Islands. p. 44 



461. Sedum Rhodiola, 42 ; June 4 ; Shetland to S. 

 Wales and York, Ireland. p. 107 



462. Sedum Telephium, 75 ; F. W. F. v. 101 ; July 27 ; 

 Perth southwards, Derry in Ireland. p. 154 



463. Sedum villosum, 30 ; June 18 ; Elgin to West- 

 morland and Yorks. p. 93 



464. Sedum dasyphyllum, ; June 6 ; naturalised on 

 old walls. p. 93 



465. Sedum anglicum, 60 ; June 16 ; Shetland south- 

 wards, Ireland. p. 67 



466. Sedum album, ; July 13 ; Forfar southwards, 

 an escape, wild on Malvern Hills and in Somerset, p. 118 



467. Sedum acre, 113 ; F. W. F. in. 141 ; June 29 ; 

 Great Britain, Ireland, Channel Islands. p. 88 



468. Sedum sexangulare, ; July 9 ; E. England, p. 142 



469. Sedum reflexum, ; July 19 ; England, Wales, 

 Ireland. p. 141 



470. Sedum rupestre, 12 ; June 24 ; Wales and S. W.- 

 England rare, Ireland, Channel Islands. p. 87 



471. Sedum Forsterianum, 11 ; June 22 ; Somerset, 

 Gloucester, Shropshire, Wales. p. 88 



472. Sempervivum tectorum, ; F. W. F. vii. 77 ; 

 July 3 ; widely spread, tops of walls, etc. p. 152 



473. Cotyledon umbilicus, 54 ; F. W. F. in. 157 ; June 



