In New York, every little bit of greenery helps, and this one is a very little bit. Measuring about 1/50th of an acre, this patch of parklet is known as "Paterno Trivium," after the Latin word for the place where three roads meet -- in this case, Cabrini Blvd., Pinehurst Ave. and West 187th St. in the neighborhood known as Hudson Heights or north Washington Heights. It's named for Dr. Charles V. Paterno (born 1876 or '77; died 1946). He was a physician, but he's remembered here as a builder, most notably of two nearby co-op apartment complexes: the Tudor-style Hudson View Gardens and Castle Village with its cruciform towers, both overlooking the Hudson. This little piece of green was set aside in 2000, according to the sign. I'm not sure whether this Upper Manhattan Paterno is at all related to the Penn State Paterno (born in Brooklyn), although I doubt it.