COMPARATIVE STUDY OF THE SECRETORY STRUCTURES AND VOLATILE OILS IN SOME PINUS SPECIES Journal title: Analele Stiintifice ale Universitatii Alexandru Ioan Cuza din Iasi, Serie noua, Sectiunea II a. Biologie vegetala Authors: I. BURZO, IRINA TOMA, D. MIHÄ‚ESCU, C. TOMA Subject(s):