front |1 |2 |3 |4 |5 |6 |7 |8 |9 |10 |11 |12 |13 |14 |15 |16 |17 |18 |19 |20 |21 |22 |23 |24 |25 |26 |27 |28 |29 |30 |31 |review

Fig. 4. PL and LL in race Tiny, intermediates and torreyana parents at Guaymas. Two Tiny trees on the left are hybridizing the torreyanas on the right as demon-strated phenotypically by foliar measurements.