The dypsis was tagged as Scotchiana when I got it from Rancho Soledad nursery a few yrs ago. It also has been id'd as Psammophyla. The stems are 1" and very dark green, the leaves are V'd and the leeflets are very fine. The Burritiokentia Koghiensis was looked at personally by Don Hodel after his initial response in the Palm Journal, and he agrees that it indeed may be Koghiensis. I have two of these and they have some differences, One is more upright than the other and has the "wings" at the base of the petioles. The flowers and seeed are identical. Don thought that there could be a possibility that these could be B. Dumasii or Grandiflora but further inspections need to be done. As far as leaf burn on Dypsis Leptochilos, I have seen this in these palms in Hawaii, Costa Rica and Mexico near the oceans, salty winds are my guess. Meanwhile, checkout the white crownshaft on Hedycepe.