338 



8. Lemna minor, — Anglesea, September 3, 1828. — Co- 

 rolla monophyllous, roundish, closely investing the stamens 

 and pistils. Stamens two, rarely exserted at the same time. 

 Pollen globular, its diameter to the breadth of the stigma as 

 1 to 8. Germen with a solitary rudiment. Style curved up- 

 wards. Stigma two-lipped, and more dilated than in L. gihha. 

 (Seefi? transversely placed within the capsule, (the ^^'/wwi pointing 

 toward the narrow end of the frond,) compressed, obscurely 

 furrowed at the sides. Frond elliptical, more oblong than in 

 L. gihha. Root a single fibre, tipped with a long sheath, 

 which is sometimes minutely hairy. The albumen is more 

 distinct in this seed than in that of L. gihha. Emhryo as in 

 that species, though smaller. — I believe the frond, as well 

 as that of Zy. gihha to be always laterally proliferous, whether 

 the flower be present or not, the " buds" not supplying 

 their place, but accompanying them. 



9. Lemna gihha. — Near Warrington, September, 1826. — 

 Grains o^ Pollen globular, their diameter to the thickness of 

 the anther as 1 to 7, and to the breadth of the stigma as 1 

 to 5 ; they do not burst in water until after having been dried. 

 Only one stamen exserted. Style the length of the germen. 

 Stigma two-lipped, concave. Capsule rounded, compressed, 

 pointed with the base of the style, four-seeded. Seed not 

 transversely placed, but with the hilmn towards the top of 

 the capsule, furrowed. I have never seen two flowers on the 

 same frond. The i-oot proceeds from a part which is free 

 from the vesicular gibbous body underneath ; these vesicles 

 are filled with air until the plant decays. — In the same situa- 

 tion fertile specimens were plentiful in September, 182T. 



10. Cladium Mariscus. — Cheshire, August, 1825. — Stigmas 

 generally two, which are sometimes cloven. Three flowers 

 not unfrequent in each spikelet, but more commonly two 

 only are found, one of which is usually abortive, yet it is not 

 difficult to find instances in which both come to perfection, 

 and sometimes even the third floret is fertile. Vide Engl. Fl. 

 vol. 4. Addenda. 



11. A.\\ihoyiVi\\\\\wm odoratum. — June, 1828. — I think Mr. 



