BOTANY: ADDRESS TO STUDENTS. 43 



8. Labiates, Aromatic herbs (rarely shrubs), with square stems, 

 opposite leaves, and an ovary composed of four deeply-separated 

 lobes, which can always be seen at the bottom, of the calyx tube 

 by. pulling off the corolla. These develope into a fruit of four one- 

 seeded nuts (very small) remaining at the bottom of the calyx tube. 

 This peculiarity of ovary and fruit distinguishes the order from all 

 others (except some genera of Boraginece, which in other respects 

 are quite different), aud there is no order more easily recognised. 

 To it belong all the mints, lavender, rosemary, sage, salvias, &c. 

 Now of these orders what has been said above of Nos. 2, 3, and 5 

 will be sufficient for the beginner. As to the rest, if he finds a tree 

 with this peculiar form of corolla and arrangement of stamens he 

 will know that it belongs to order 4. If a shrub with flowers closed 

 in with many large bracts it probably belongs to No. 6.. Any other 

 shrub probably to No. 7. If a square stemmed aromatic herb, with 

 the peculiar ovary mentioned above, it certainly belongs to No. 8. 

 Any other herb probably to No. 1, though each of the other orders, 

 except No. 4, has some herbs. Thus the field for identification is 

 very much narrowed. 



It only remains to give a list of the common or very conspicuous 

 species found in W. India belonging to these orders, and possessing 

 the peculiar form of corolla and arangement of stamens we are 

 concerned with; for it must be remembered that in the large orders 

 here given there are a good many plants which have either a 

 regular corolla or else five or two stamens, or in some cases four 

 equal ones. With these we have no concern in the present arrange- 

 ment, but in two genera of Acanthaceoe here given the upper lip 

 is wanting. 



[Note.— In these descriptions, D. signifies Dalzell and Gibson's Bombay Flora ; 

 II. Hooker's Indian Flora ; Native names in Italics.] 



Bilabiate flowers with didynamous stamens. 



I. — Order Scropholarine^. 



1. Linaria, — Corolla with mouth quite closed, and a spur below 



the lower lip. 



L. ramosissima,—A smooth delicate plant much branched and 

 prostrate ; flowers yellow, solitary, long-stalked ; leaves triangular, 

 more or less lobed. Deccan and elsewhere. Throughout India, H. 



Any one would recognise this from its likeness to the English 

 snapdragons, both of garden and hedge. 



