Other  (May 2014)  Page(s) 15.  
 
O, 4x, pollen size 35.2 +/- 1.0 μm, % shriveled ~ 20

Book  (1985)  Page(s) 136.  
 
It had leaves of modern rather than moss rose type, and orange yellow flowers. It bore no seeds, but had good pollen.

Book  (1978)  Page(s) 139.  
 
Ralph Moore made a cross 'Mark Sullivan' x 'Golden Moss'. Now, 'Mark Sullivan' was an unhealthy Hybrid Tea from Charles Mallerin, who called it 'Président Chaussé'. Moore's cross was successful to the extent of producing a mossy Hybrid Tea, nothing great but encouraging.

Book  (1978)  Page(s) 6.  Includes photo(s).
 
"O.M." (Mark Sullivan x Golden Moss)

Book  (1978)  Page(s) 10-13.  
 
My own work with moss roses began with a successful cross of Mark Sullivan (H.T.) x Golden Moss. As expected, all seedlings were tall growing, climbing to 8-10' or more) spring flowering plants. Only one was really mossed. It had large glossy foliage and slender, quite well mossed buds which opened into a brilliant blend of yellow and orange. The moss was of the stiff or thorny type but it was a start and this selection has been an important link in my work with moss roses. ...Beginning with this Mark Sullivan x Golden Moss seedling as the pollen parent, numerous crosses were made using hybrid tea and floribunda varieties as the seed (female) parent. This was necessary in order to recover the everblooming, bush type plant. But in so doing most, or all, of the moss was lost.
...Since the original code number was lost we simply refer to this clone as 'O.M.' in our breeding records.
Pollen from 'O.M.' (short for orange moss) has been used in numerous crosses over the years. The pollen is produced abundantly and is compatible with many varieties. So by crossing a yellow H.T. seedling with pollen from 'O.M.' I obtained a number of yellow and orange colored moss roses. Nearly all were tall growing (climbing) spring flowering plants and ranged from single to full double flowers.

Book  (1978)  Page(s) 28.  
 
The code on this important beginning is O.M. (since the original code number was lost). O.M. is a cross of H.T. rose Mark Sullivan x Golden Moss and is a very vigorous plant growing up to 10 feet tall with heavy, very thorny canes. The slender buds are quite well mossed and change from bright orange blend to an orange pink (or pink blend) in the mature flower. Bud and flower are H.T. form. Spring bloom only.