2/2 MONGEC. PENTADS B. POLYAND. 



4. PENTANDRIA. 



11. BRYONIA. 



1. Br. dioica {red-herried Brioriy), leaves palmate rough on both 

 sides, flowers dioecious. Lightf. p. 590 {Bryonia aWa) . E. B. 

 t. 439. 



Hab. Sometimes seen in garden hedges and near houses, but proba- 

 bly not indig.. Dr. Burgess. Fl. May. 1/ . 



Root exceedingly large, white and branched. Stem long, slender, 

 branched, weak, and climbing, with simple tendrils. Leaves large, 

 5-lobe<:l, the lobes angular. Flowers in axillaiy bunches. Cor. 

 'whitish, with green veins .Berries red. — Full of a fetid, acrid juice. 



5. POLYANDRIA. 



12. CERATOPHYLLUM. 



1. C. demersjim {commnn Hornwort), fruit armed with three 

 spines. Ligluf. p. 580. E. i5. /. 947. 



Hab. Under water in ■slow streams and ditches, common. Fl. July. 1/ . 



Stem long, slender, and much branched. Leaves whorled, di-tricho- 

 tomous, linear, setaceous, distantly serrated. Flowers whorled, in 

 the axils of the leaves, small. Anthers sessile, crowded, spotted. 

 Germen with 3 unequal spines longer than the cal., and terminated 

 by a more or less curved, subulate stijle. — Are the spines upon the 

 fruit of this plant sufficient to form a specific distinction between 

 this and C. submersum ? 



13. MYRIOPHYLLUM. 



1. M. spicatum [spiked Water MiUfoil), sterile flowers in in- 

 terrupted leafless spiked whorls. Lightf. p. 581. E. B. t. SS. 



Hab. Ditches and stagnant waters, common. Fl. July, Aug. 11 . 



Stems slender, much branched. Leaves 4 together in a whorl, finely 

 pectinated, and always under water. SpiJces slender, 2 — 3 inches 

 long. Petals small, reddish. Anthers yellowish. 



14. ARUM. 



1. A. maculatiim {Citckow-pint, or IVake-rolin), leaves all ra- 

 dical hastato-sagittate, lobes deflexed, spadix club-shaped ob- 

 tuse shorter than the spatha. Lightf. p. 528. E. B. t. 1298. 



Hab. Hedges and shady places, but not frequent. Woods at Both- 

 well and Hamilton, Hopk. Woods at Dalhousie, abundant, and 

 Bogsmill, near Slateford, Maugh. Cliesh woods, Mr. Arnott. Upon 

 Inchmahone, Loch of Monteith, Mr. Young. Fl. April. 7/ . 



Boots tuberous, affording an abundant feculum, which, if properly 

 prepared, for it is of a poisonous nature, proves an excellent succe- 

 daneum for bread-flour, and is sold for that purpose in great abun- 

 dance at Weymouth and in the Portland Island. Leaves large, 

 shining, often spotted v/ith black. Spatha more or less convolute, 

 large. The germens are at the base of the spadix : above is a ring 

 of 2-celled sessile anthers, and above these another ring of appa- 

 rently abortive germens. The spadix is long, club-shaped, and of 



