Parsnip and Celeriac 



193 



stalked with petioles expanded at base, leaflets ovate to 

 oblong, sessile or short-stalked, more or less irregularly lobed, 

 the margins toothed or cut : stem erect, strongly grooved 

 and angled, 3 to 4 or 5 ft. high, branched: flowers greenish,, 

 small, in compound umbels that are mostly devoid of invo- 

 lucre and involucels ; umbels enlarging in fruit, the rays some- 

 times 6 in. long; petals obovate, clawed, incurved; stamens 

 exserted ; styles 2, spreading or recurved: fruit ("seed" of 

 commerce) one of two closely appressed but separating car- 

 pels, very thin, flat, oval, about i/4 in. long, w^ing-margined, 

 strongly ribbed on the outside and less so on the inner face, 

 weighing 2 to 5 mg., holding germinating power only a year 

 or two. — Europe and Asia ; in var. sylrestris, DC, extensively 

 spread in this country as an introduced weed. 



CELERIAC 



The celeriac, or turnip-rooted celery, has a short, 

 thick, tuberous 

 crown-base, from 

 w h i c h many 

 roots arise. This 

 tuber is the 

 edible part, be- 

 ing used either 

 as salad or 

 a cooked vege- 

 table (Fig. 101). 

 It has the celery 

 flavor. The 

 plant is dwarf; 

 it requires no 

 blanching, being 

 generally growm only for the root. Sometimes the seeds are 

 sown where the plant is to grow, but as they are as slow to 



101. Celeriac, trimmed root and leaf (X V^)- 



