diff --git a/graphene/new_types/schema.py b/graphene/new_types/schema.py
index 619c05bc..7a8315f2 100644
--- a/graphene/new_types/schema.py
+++ b/graphene/new_types/schema.py
@@ -6,7 +6,8 @@ from graphql.utils.schema_printer import print_schema
 
 
 from .objecttype import ObjectType
-from .scalars import Scalar
+from .structures import List, NonNull
+from .scalars import Scalar, String
 # from ..utils.get_graphql_type import get_graphql_type
 
 
@@ -19,13 +20,14 @@ from collections import Iterable, OrderedDict, defaultdict
 from functools import reduce
 
 from graphql.utils.type_comparators import is_equal_type, is_type_sub_type_of
-from graphql.type.definition import (GraphQLInputObjectType, GraphQLInterfaceType, GraphQLField,
+from graphql.type.definition import (GraphQLInputObjectType, GraphQLInterfaceType, GraphQLField,GraphQLScalarType,
                          GraphQLList, GraphQLNonNull, GraphQLObjectType,
                          GraphQLUnionType)
 from graphql.type.directives import (GraphQLDirective, GraphQLIncludeDirective,
                          GraphQLSkipDirective)
 from graphql.type.introspection import IntrospectionSchema
 from graphql.type.schema import assert_object_implements_interface
+from graphql.type.scalars import GraphQLString
 
 
 class Schema(GraphQLSchema):
@@ -97,18 +99,35 @@ class Schema(GraphQLSchema):
     def _type_map_reducer(self, map, type):
         if not type:
             return map
-        if inspect.isclass(type) and issubclass(type, (ObjectType, Scalar)):
+        if isinstance(type, List) or (inspect.isclass(type) and issubclass(type, (ObjectType, Scalar))):
             return self._type_map_reducer_graphene(map, type)
         return super(Schema, self)._type_map_reducer(map, type)
 
     def _type_map_reducer_graphene(self, map, type):
         # from .structures import List, NonNull
-        from ..generators.definitions import GrapheneObjectType
+        from ..generators.definitions import GrapheneObjectType, GrapheneScalarType
+        if isinstance(type, List):
+            return self._type_map_reducer(map, type.of_type)
+        if issubclass(type, String):
+            map[type._meta.name] = GraphQLString
+            return map
+
+        if type._meta.name in map:
+            assert map[type._meta.name].graphene_type == type
+            return map
         if issubclass(type, ObjectType):
             fields = OrderedDict()
+            map[type._meta.name] = GrapheneObjectType(
+                graphene_type=type,
+                name=type._meta.name,
+                description=type._meta.description,
+                fields={},
+                is_type_of=type.is_type_of,
+                interfaces=type._meta.interfaces
+            )
             for name, field in type._meta.fields.items():
                 map = self._type_map_reducer(map, field.type)
-                field_type = map.get(field.type._meta.name)
+                field_type = self.get_field_type(map, field.type)
                 _field = GraphQLField(
                     field_type,
                     args=field.args,
@@ -117,16 +136,22 @@ class Schema(GraphQLSchema):
                     description=field.description
                 )
                 fields[name] = _field
-            map[type._meta.name] = GrapheneObjectType(
-                graphene_type=type,
-                name=type._meta.name,
-                description=type._meta.description,
-                fields=fields,
-                is_type_of=type.is_type_of,
-                interfaces=type._meta.interfaces
-            )
+            map[type._meta.name].fields = fields
+            # map[type._meta.name] = GrapheneScalarType(
+            #     graphene_type=type,
+            #     name=type._meta.name,
+            #     description=type._meta.description,
+
+            #     serialize=getattr(type, 'serialize', None),
+            #     parse_value=getattr(type, 'parse_value', None),
+            #     parse_literal=getattr(type, 'parse_literal', None),
+            # )
         return map
 
+    def get_field_type(self, map, type):
+        if isinstance(type, List):
+            return GraphQLList(self.get_field_type(map, type.of_type))
+        return map.get(type._meta.name)
     # def rebuild(self):
     #     self._possible_type_map = defaultdict(set)
     #     self._type_map = self._build_type_map(self.types)
diff --git a/graphene/new_types/tests/test_definition.py b/graphene/new_types/tests/test_definition.py
index 506c2ee7..f100562e 100644
--- a/graphene/new_types/tests/test_definition.py
+++ b/graphene/new_types/tests/test_definition.py
@@ -64,7 +64,7 @@ def test_defines_a_query_only_schema():
     assert issubclass(author_field_type, ObjectType)
     recent_article_field = author_field_type._meta.fields['recent_article']
 
-    assert recent_article_field.type() == Article
+    assert recent_article_field.type == Article
 
     feed_field = Query._meta.fields['feed']
     assert feed_field.type.of_type == Article