438 THE MILKWEED FAMILY. 



Closely allied to Asclepias is the genus Acerates which also is represented 

 throughout our range and may be exemplified by the Florida milkweed, 

 Acerates Floridana, a beautiful plant with soft green, linear-lanceolate foli- 

 age and numerous compact umbels of greenish, purple-tipped flowers ; and 

 also by the green milkweed, Acerates viridiflora, a somewhat coarser plant 

 with thick, rather rough leaves. Although in their growth and pods they 

 are very similar to the other milkweeds, they may always be distinguished by 

 the unappendaged corona-hoods of the blossoms. 



THE nORNINQ=QLORY FAfllLY. 



Convolv tc Idcecs. 



In our species herbs with trailing, ascendijig or mostly twifiing stems, 

 and alterfiate leaves entire, lobed, or finely dissected, and which, bear reg- 

 ular, perfect fi,owers with ga??topetalous corollas growing solitary, or in 

 clusters. 



WILD POTATO VINE. MAN-OF-THE-EARTH. 



Ipoinka pandurata. 



FAMILY COLOUR ODOUR RANGE TIME OF BLOOM 



Morning-glory. White ^ crivison Scentless. Florida to Ontario May-Septe77iber. 



centre. and westward. 



Flowers: two to three inches long, showy and from one to five growing on long 

 peduncles. Calyx : divided into five usually unequal divisions. Corolla: funnel- 

 form, the limb five-lobed. Stafnens : included. Seeds : woolly. Z^^^z^'^j ; with 

 long slender petioles, broadly ovate, long pointed at the apex and deeply cordate 

 at the base; entire ; dark green on both sides. Slem : four to twelve feet long, 

 trailing and twining, rather smooth. Rools : fleshy; very large. 



On little hillocks and banks or over the dry soil of fields the man-of-the- 

 earth spreads in summer many of its great, white, waxy flowers, effectively 

 spotted at their bases with purple. So luxuriant and delicate in texture are 

 they that many of us are minded of some exotic, while again they are re- 

 garded as common things best passed by. For all know the look of morn- 

 ing-glories, as members of the genus are indiscriminately called, and this 

 one appears to be King of them all. They are, however, flowers quite with- 

 out the shade of mystery. 



/. laciinbsa, small-flowered white morning-glory, arises from an annual 

 and fibrous root and unfolds blossoms less than, or but little over, an inch 

 long. Its cordate leaves have occasionally three pointed lobes, and although 

 sometimes occurring quite smooth the plant has usually a hairy pubescence. 



I. purpiirea, morning-glory, the form with which w-e are mostly familiar 



