224 



American Midland Naturalist Monograph No. 4 



gins toothed; flowers yellow, funnel-shaped, deeply 5-lobed, slightly 2-lipped 

 borne 2 or 3 together on short stems at or near the ends of the branches; cap- 

 sules slender, about 1/3 inch long, narrowed to a beak at the tips; many-seeded. 

 Occurrence. — isLE ROYALE: Daisy Farm; Rock Harbor Lodge. 



Viburnum (Viburnum L.) 



Field Guide to the Species 



Leaves shallowly 3-lobed or undivided, the leaf-stalks not glandular; flower-clusters 

 % to 2 inches across, the flowers in a cluster all alike, small, perfect. 

 Leaves mostly undivided; flower-clusters l!/2 to 2 inches across, borne on elon- 

 gated upright branches; fruits purple-black, oval, the stone grooved 



- 1 . V. elliplicum. 



Leaves mostly 3-lobed; flower-clusters % to 1 inch across, borne on short lateral 

 branchlets; fruits globose, slightly flattened, the stone not or scarcely 



grooved ...2. V. pauciflorum. 



Leaves 3-lobed, the leaf-stalks with stalked glands near the fop; flower-clusters 2J/2 

 to 4 inches across, with the center flowers small and a marginal row of 

 enlarged sterile flowers; fruits scarlet 3. V. Irilobum. 



L Oregon Viburnum (Viburnum elUptkum Hook.). — Slender shrub 

 4 to 71/2 feet high; leaves opposite, elliptic-oblong to broad-elliptic or round- 

 ish, thickish, very finely hairy below, at least on the veins, 1 to 2% inches long, 

 3- to 5-nerved from the base, the margins toothed above the base; flowers 

 small, about i^ ^^'^^ across, borne in more or less flat-topped clusters at the 

 ends of the branches, the clusters I1/2 to 2 inches across; berries purple-black, 

 oval, nearly ^2 vnch. long, with a single grooved stone. 



Occurrence. — YOSEMITE, rare. 



2. Mooseberry Viburnum 

 (Viburnum pauciflorum Raf.), 

 fig. 138. — Straggling shrub 2 to 6 

 feet high with smooth bark; leaves 

 opposite, broadly oval to round- 

 ish, rounded at the base and usu- 

 ally with 3 broad lobes near the 

 tip, smooth or somewhat hairy, 

 the margins toothed; flowers 

 small, white, borne in small clus- 

 ters on short branchlets in the 

 leaf-axils, the clusters about % to 

 1 inch across; berries nearly glo- 

 bose, somewhat flattened, about 

 1/3 inch long, red and trans- 

 lucent, quite tart, with a single 

 flattened whitish stone. Where 

 Fig. 138. Mooseberry viburnum ^^e ?^^^^ is abundant, the berries 



{Viburnum pauciflorum). were gathered and made into a 



sauce which was used as a substitute for cranberries. 



Occurrence. — OLYMPIC. MOUNT rainier, rare: Ohanapecosh River near Cougar 



