+
+Character |
+
+
+M. philippensis var. philippensis
+
+ |
+
+
+M. philippensis var. reticulatus
+
+ |
+
+
+M. bullatus
+ |
+
+Habit |
+Small tree or shrub |
+Shrub |
+Shrub |
+
+
+
+
+Upper leaf midrib hairys |
+No |
+Yes |
+No |
+
+
+Leaf margins |
+Entire or nearly so |
+Coarsely serrate |
+Entire or nearly so |
+
+
+Leaf margins bearing red glands |
+No |
+No |
+Sometimes |
+
+
+Leaf surface bullate |
+No |
+No |
+Yes |
+
+
+Length of solitary or clustered hairs on leaf abaxial veins |
+
+0.04-0.28 mm (
+Zhang, 2018
+)
+ |
+0.05-0.1 mm |
+0.1-0.8 mm |
+
+
+Number of staminate sepals |
+3-4 |
+4 |
+5 |
+
+
+Pollen size |
+15.5 (17.5) - (11.6) 15.5 μm (Nowicki and Takahashi 2002) |
+19 × 20 μm |
+22 × 20 μm |
+
+
+Fruits with spines |
+No |
+Yes |
+Yes |
+
+
+