diff --git a/predicates.rkt b/predicates.rkt
index 6bd8845..7fba50e 100644
--- a/predicates.rkt
+++ b/predicates.rkt
@@ -206,7 +206,7 @@
     (or  (eq? x #f) ; OK for map-key to be #f
          (and (or (symbol? x) (string? x)) 
               ;; todo: should test be same as valid module ptree-name?
-              (->boolean (regexp-match #px"^[-_A-Za-z0-9]+$" (->string x))))))
+              (->boolean (regexp-match #px"^[-_A-Za-z0-9.]+$" (->string x))))))
   (if (and (not result) loud)
       (error "Not a valid ptree key:" x)
       result))
@@ -216,7 +216,7 @@
   (check-true (ptree-name? "foo-bar"))
   (check-true (ptree-name? "Foo_Bar_0123"))
   (check-true (ptree-name? 'foo-bar))
-  (check-false (ptree-name? "foo-bar.p"))
+  (check-true (ptree-name? "foo-bar.p"))
   (check-false (ptree-name? "/Users/MB/foo-bar"))
   (check-false (ptree-name? ""))
   (check-false (ptree-name? " ")))
diff --git a/server-routes.rkt b/server-routes.rkt
index 8dcdc38..6c8dc8f 100644
--- a/server-routes.rkt
+++ b/server-routes.rkt
@@ -5,7 +5,7 @@
 (require web-server/http/request-structs)
 (require web-server/http/response-structs)
 (require 2htdp/image)
-(require "world.rkt" "render.rkt" "readability.rkt" "predicates.rkt" "debug.rkt")
+(require "world.rkt" "render.rkt" "readability.rkt" "predicates.rkt" "debug.rkt" "ptree.rkt")
 
 (module+ test (require rackunit))
 
@@ -173,9 +173,8 @@
                            [else   (cons filename filename)])
                          
                          (cond ; in cell
-                           [(has-ext? filename POLLEN_TREE_EXT) (cons (format "in/~a" filename) "ptree")]
                            [source  (cons (format "in/~a" source) "in")]
-                           [(sourceish? filename)  (cons (format "in/~a" filename) "in")]
+                           [(or (has-ext? filename POLLEN_TREE_EXT) (sourceish? filename))  (cons (format "in/~a" filename) "in")]
                            [else empty-cell])
                          
                          (cond ; out cell 
@@ -184,7 +183,6 @@
                            [else (cons (format "out/~a" filename) "out")]))))))
   
   (define (ineligible-path? x) (or (not (visible? x)) (member x RESERVED_PATHS)))  
-  (define project-paths (filter-not ineligible-path? (directory-list dir)))
   
   (define (unique-sorted-output-paths xs)
     (define output-paths (map ->output-path xs))
@@ -197,10 +195,14 @@
     ;; put subdirs in list ahead of files (so they appear at the top)
     (append (sort-names subdirectories) (sort-names files)))
   
+  (define project-paths (filter-not ineligible-path? (if (file-exists? dashfile)
+                                                         (map ->path (all-names (ptree-source->ptree dashfile)))
+                                                         (unique-sorted-output-paths (directory-list dir)))))
+  
   (body-wrapper
    `(table 
      ,@(cons (make-parent-row) 
-             (map make-path-row (unique-sorted-output-paths project-paths))))))
+             (map make-path-row project-paths)))))
 
 (define route-dashboard (route-wrapper dashboard))
 
diff --git a/server.rkt b/server.rkt
index c272eb6..b9b9e40 100755
--- a/server.rkt
+++ b/server.rkt
@@ -3,11 +3,12 @@
          web-server/dispatch)
 (require "server-routes.rkt" 
          "debug.rkt" 
-         "world.rkt")
+         "world.rkt"
+         "file-tools.rkt")
 
 (define-values (pollen-servlet _)
   (dispatch-rules
-   [((string-arg) ... (? (λ(x) (equal? DASHBOARD_NAME x)))) route-dashboard]
+   [((string-arg) ... (? (λ(x) (x . has-ext? . POLLEN_TREE_EXT)))) route-dashboard]
    [((string-arg) ... "in" (string-arg)) route-in]
    [((string-arg) ... "out" (string-arg)) route-out]
    [((string-arg) ... "xexpr" (string-arg)) route-xexpr]
diff --git a/world.rkt b/world.rkt
index b962e51..2e10938 100644
--- a/world.rkt
+++ b/world.rkt
@@ -56,5 +56,5 @@
 
 (define SERVER_PORT 8088)
 
-(define DASHBOARD_NAME "poldash.html")
+(define DASHBOARD_NAME "index.ptree")
 (define DASHBOARD_CSS "poldash.css")
\ No newline at end of file