| Rorippa nasturtium-aquaticum | GB, VC64 Mid-west Yorkshire, Malham Tarn | Effie Moira Rosser | | 15/7/1954 | MANCH |
| Salix aurita x repens = S. x ambigua | GB, VC64 Mid-west Yorkshire, Malham | Effie Moira Rosser | | 7/1954 | MANCH |
| Salix aurita x repens = S. x ambigua | GB, VC64 Mid-west Yorkshire, Malham | Effie Moira Rosser | | 7/1954 | MANCH |
| Salix aurita x repens = S. x ambigua | GB, VC70 Cumberland, Tarn Moss | Effie Moira Rosser | | 19/7/1954 | MANCH |
+ | Saxifraga hypnoides | GB, VC57 Derbyshire, Miller's Dale | Effie Moira Rosser | | 6/7/1952 | MANCH |
+ | Saxifraga hypnoides | GB, VC57 Derbyshire, Miller's Dale | Effie Moira Rosser | | 6/7/1952 | MANCH |
+ | Senecio cambrensis | GB, VC51 Flintshire, Ffrith | Arthur John Farmer Effie Moira Rosser | | 17/7/1954 | MANCH |
+ | Senecio cambrensis | GB, VC51 Flintshire, Ffrith | Effie Moira Rosser L W Frost | | 2/10/1954 | MANCH |
+ | Senecio cambrensis | GB, VC51 Flintshire, Ffrith | Effie Moira Rosser L W Frost | | 2/10/1954 | MANCH |
+ | Senecio cambrensis | GB, VC51 Flintshire, Ffrith | Effie Moira Rosser L W Frost | | 2/10/1954 | MANCH |
| Senecio jacobaea x aquaticus = S. x ostenfeldii | GB, VC57 Derbyshire, Chinley | Effie Moira Rosser | | 7/8/1952 | MANCH |
| Senecio jacobaea x aquaticus = S. x ostenfeldii | GB, VC57 Derbyshire, Chinley | Effie Moira Rosser | | 7/8/1952 | MANCH |
+ | Senecio jacobaea x aquaticus = S. x ostenfeldii | GB, VC57 Derbyshire, Chinley (near),Hall End | Effie Moira Rosser | Effie Moira Rosser | 20/9/1953 | MANCH |
| Senecio jacobaea x aquaticus = S. x ostenfeldii | GB, VC57 Derbyshire, Hull End, Chinley | Effie Moira Rosser | | 6/8/1952 | MANCH |
| Senecio jacobaea x aquaticus = S. x ostenfeldii | GB, VC57 Derbyshire, Hull End, Chinley | Effie Moira Rosser | | 6/8/1952 | MANCH |
+ | Silene nutans | GB, VC57 Derbyshire, Miller's dale [Millersdale] | Effie Moira Rosser | | 29/6/1952 | MANCH |
+ | Silene nutans | GB, VC57 Derbyshire, Miller's dale [Millersdale] | Effie Moira Rosser | | 29/6/1952 | MANCH |
+ | Spergula arvensis | GB, VC59 South Lancashire, Ainsdale | B Bewick Effie Moira Rosser | | 10/7/1952 | MANCH |
+ | Spergula arvensis | GB, VC59 South Lancashire, Ainsdale | B Bewick Effie Moira Rosser | | 10/7/1952 | MANCH |
+ | Spiranthes spiralis | GB, VC52 Anglesey, Holy Is | Effie Moira Rosser | Effie Moira Rosser | 3/9/1952 | MANCH |
+ | Stellaria palustris | GB, VC22 Berkshire, Cookham | Effie Moira Rosser | | 30/6/1951 | MANCH |
+ | Stellaria palustris | GB, VC22 Berkshire, Cookham | Effie Moira Rosser | | 30/6/1951 | MANCH |
| Symphytum officinale x asperum = S. x uplandicum | GB, VC58 Cheshire, Lindow Common | Effie Moira Rosser | | 6/7/1954 | MANCH |
| Symphytum officinale x asperum = S. x uplandicum | GB, VC58 Cheshire, Lindow Common | Effie Moira Rosser | | 6/7/1954 | MANCH |
| Symphytum officinale x asperum = S. x uplandicum | GB, VC58 Cheshire, Lindow Common | Effie Moira Rosser | | 6/7/1954 | MANCH |
| Symphytum officinale x asperum = S. x uplandicum | GB, VC58 Cheshire, Lindow Common | Effie Moira Rosser | | 6/7/1954 | MANCH |
| Symphytum officinale x asperum = S. x uplandicum | GB, VC58 Cheshire, Lindow Common | Effie Moira Rosser | | 6/7/1954 | MANCH |
| Symphytum officinale x asperum = S. x uplandicum | GB, VC59 South Lancashire, Southport | Effie Moira Rosser | | 6/6/1954 | MANCH |