194 GEOLOGICAL SUBVET OF CANADA. 



(910.) S. Canadensis, Linn. Common Elder. 



In low thickets and along fences, frequent from Nova Scotia to the 

 Saskatchewan. Berries purple. 



246. Viburnum, Linn. ARROW-WOOD.) 



(911.) V. LentagO, Linn. Sweet Vibui-num. Sheep-ben-y. 



Common from Eivi^i-e du Loup westward to the valleys of the Eed, 

 Assiniboine, and Saskatchewan rivers. Its usual habitat is river valleys 

 where it sometimes grows to the height of twenty feet with a diameter 

 of six inches. Its wood is of a yellow color and when fresh cut has a 

 very powerful and offensive odor. 



(912.) V. nudum, Linn. Var. cassinoides, Torr. & Gray. 



V. nudum, Hook. Fl. I., 279. 

 V.pyrifoHum, Pursh, Fl. I., 201. 

 V. cassinoides, Linn. Pursh, FL I., 202. 

 V- prunifoUum, Hook. Fl. I., 279. 



Common in cold' swamps and rocky wet woods from Newfoundland, 

 Nova Scotia and New Brunswick to the Saskatchewan. Eare in south- 

 ern Ontario. Port Colborne, Ont. {David F. DayJ) 



(913). V. dentatum, Linn. Arrow-wood. 



Wet places and thickets in south-western Ontario. La Grande 

 Chaudi^re, Ottawa. (Pursh.) [Extremely doubtful.] Woods, north 

 of the Junction, Pi-escott, Ont. (Billings.) Chippawa, Ont. (Maclagan.') 

 It is probable that part of the above references belong to the next 

 species. Deleware station near St. Thomas, Ont. (Macoun.) 



(914.) V. pubescens, Pursh. Downy AiTow-wood. 



Dry rocky fields and thickets extending from the western part of 

 Quebec to Manitoba, near Brandon on the Assiniboine. Nicolet, Q. 

 {Maclagan) is its eastern limit. Although called Downy Arrow-wood, 

 it is often almost smooth, and approaches closely to the preceding 

 except in its short petioles which are constant. 



(915.) V. acerifolium, Linn. Maple-leaved Arrow-wood. 



Dry rocky thickets and borders of woods. Beloeil and Montreal 

 Mountains. (McGill Coll. Serb.) Common in Ontario. (Macoun.) 

 Prom Lake Huron to the Saskatchewan. (JDrummond.) This species 

 is reported from Newfoundland, Nova Scotia and Alaska, but, as it was 

 formerly confounded with the next, I believe these references belong 

 to that species 



