The Flora of the Cayuga Lake Basin 245 



7. Malus Mill. 

 a. Leaves almost regularly serrate or crenate, rugose, usually tomentose ; pedicels stout 

 at flowering time, 1.4-2 mm. in diam., subumbellate ; sepals 3-4.5 mm. wide at 

 base, generally revolute; petals white, pink, or purple, the claws one-half or less 

 than one-half the length of the sepals; disk about 3-4 mm. in diam., saucer- 

 shaped ; anthers white ; fruit 2.5 cm. in diam. or more. 1. M . pumila 

 a. Leaves incised-serrate or lobed, less rugose or smooth, usually glabrous ; pedicels 

 slender at flowering time, 0.7-1 mm. in diam., in short racemes ; sepals about 2 

 mm. wide at base, not revolute; petals delicate pink, the claws one-half or more 

 than one-half the length of the sepals ; disk about 2-2.5 mm. in diam., more 

 cup-shaped ; anthers salmon color ; fruit less than 2.5 cm. in diam., usually very 

 waxy. 

 b. Leaves ovate or elliptic-oblong, obtuse or barely acute, the teeth rather blunt. 



2. M. coronaria 

 b. Leaves .ovate or narrowly triangular-ovate, very acute, sharply toothed. 



2a. M. c.j var. elongata 



1. M. pumila Mill. (Pyrus Mains of many recent authors.) Common Apple. 

 Rich banks and old pastures; frequently self-seeding. May 1-25. 



Escaped from cultivation and generally distributed. 



Native of Eurasia. 



Since the combination Malus Mains is not admissible, and M. sylvcstris Mill, is 

 another species, M. pumila becomes the oldest valid name applied to the whole or a 

 part of the present species. 



2. M. coronaria (L.) Mill. (See Rehder in Sargent's Trees and Shrubs, 2:139, 



228. 1913. Mitth. Deut. Dend. Gesell. 1914:259. Pints coronaria of Cayuga 

 Fl., in part. Pyrus coronaria of many authors. M. fragrans Rehder.) Wild 

 Crab-apple. 

 Moist or dry thickets, in more or less calcareous gravelly loams ; frequent. May 

 15-June 10. 



Hillside s. e. of White Church ; mouth of Lick Brook ravine ; hillside Enfield to 

 Ithaca, several places; Cascadilla Creek; Besemer; Etna; shore of Lowery Ponds; 

 and elsewhere. 



N. Y. and N. J. to Wis., southw. to Del. and Mo., and in the mts. to N. C. ; very 

 infrequent on the Coastal Plain. 

 Rehder has noted that the above Linnean name applies doubtfully to this species. 



2a. M. coronaria (L.) Mill., var. elongata Rehd. 



In situations similar to the preceding, and often growing with the typical form; 

 frequent. 



Hillside, Enfield to Ithaca ; near mouth of Lick Brook ravine ; South Hill ; Six 

 Mile Creek ; Cayuga Heights ; Etna ; Crowbar Point ; and elsewhere. 



N. Y. to Ohio, southw. in the mts to Ga. 



The var. glaucescens Rehder has not been found in the Cayuga Lake Basin. M. 

 glabrata Rehder is planted near the Home Economics Building and elsewhere about 

 Ithaca. 



8. Sorbus (Tourn.) L. 



a. Leaflets lanceolate, acuminate, glabrous ; winter buds glabrous ; flowers small, 5-6 

 mm. in diam. ; fruit small, 6-7 mm. in diam. 1. S. americana 



a. Leaflets elliptic-oblong, rather blunt ; flowers large, 8-10 mm. in diam. ; fruit 

 9 mm. in diam. 

 b. Leaflets bright green, glabrous ; buds glabrous ; cymes subglabrous. 



2. S. dumosa 

 b. Leaflets dull green, more or less pubescent, smaller than in the preceding : buds 

 hairy ; cymes tomentose. 3. S. Aucuparia 



