130 OBJECT LESSONS IN BOTANY 
characters of the five great orders following will prove a 
great saving of time and trouble. 
279. The Crucrrers are herbs with alternate leaves, cruci- 
form flowers (§ 87), two stamens shorter than the other four, 
and two-celled pods. Example, Mustard. 
280, The Puaworrs are plants with one-celled pods, mostly 
papilionaceous flowers and compound leaves. Examples, 
Pea, Bean. 
281. The Umpeturrers have alternate leaves, small, regular, 
five-parted flowers, in umbels, and two-seeded fruit. Cara- 
way 
282. The Asrerworts are herbs with compound flowers, 
that is, with heads composed of many little five-parted flow- 
ers appearing together like a single flower. Asters, Sun- 
flower. 
288. The Lastares are herbs with square stems, opposite 
leaves, labiate flowers, and fruit deeply cleft into four parts. 
Peppermint. 
Among Endogens we select two or three orders. 
984. The Orcuips. Herbs with very irregular and gro- 
tesque flowers, and stamens united to the style. Orchis. 
285. The Sxepers. Herbs with solid stems; linear, grass- 
like leaves (if any), on entire sheaths; and with green glumes 
and flowers. 
986. The Grasses. Herbs with hollow stems, linear leaves 
on split sheaths, and with green glumes and flowers. 
279. Define the Crucifers 280. The Peaworts 
281. The Umbellifers. 282. The Asterworts. 
283. The Labiates. 284. Define also the Orchids. 
285. The Sedges. 286 The Grasses. 
