Polemonium.] POLEMONIACE.E. 



71 



ween 



Hab. Common near springs and on marshy ground in the Vallies of the Rocky Mountains, bet 

 Kettle Falls and Spokan. Douglas.— ^ot having seen the fruit, it is still doubtful to me whether this be 

 really a Villarsia, or perhaps a Menyanthes, as, in the dried gernien it is indeed difficult to make out where 

 the ovula are attached. But from the calyx-leaves, as well as from a great analogy of structure with F. 

 ovatQt Vent., it will be more convenient to refer it to this genus. 



^ Tab. CLVIL B.— F?>. 1, Corolla laid open; fig. 2, Stamen; fig. 3, Calyx and pistil; fig. 4, Germen 

 laid open;^^. 5, oyMXe^i—magnified. 



10. LIMNANTHEMUM. GmeL 



Placenta suturales. Capsula evalvis, demum maceratione aperta. — Folia natantia, 



V^X.^B.fugitiva. 



1. L.iacunosum (Vent, sub Fillarsia); foliis supra asperiusculis subtus spongioso-asper- 

 rimis, corolla alba glabra nuda, glandulis epipetalis breviter stipitatis, stylo brevi crasso, 

 calyce capsulam vix sequante, seminlbus muricatis ecarinatis. — Menyanthes trachysperma. 

 Mich. I. p. 126? an hujus forma macrophylla? 



Hab. Norway House to Canada. Drummond, Dr. Richardson.— T\\q germination of this plant is 

 quite analogous to that of Trapa natans, so remarkable on that account. On the top of each branch there 

 arise three groups of different organs— viz. on one side, a leaf; on the other, the umbel of flowers; and 

 below, a great many thick, short, and simple radicles, each of which is able to produce a new plant: the 

 latter organs are, in Trapa, analogous to those which De Candolie took for stipulac, but which Keeper has 

 declared to be a sort of root — a theory which is fully proved by the present case. 



Ord. LX. POLEMONIACEiE. Juss, 



1. POLEMONIUM. Z. 



CaL 5-fiduSj persistens, laciniis acutis. Cor. campanulata rotata, S-partita, fundo 

 clausa valvis 5 staminiferis, limbo piano, laciniis rotundatis. Filameiita basi dilatata. 

 Capsula ovato-trigona, trivalvis. Semiita plurima angulosa. 



1. P. cceruleum; erectum, foliis pinnatis plurifoliolatis, floribus erectis. — L, — a, vulgare; 

 caulesolitarioelatOyfoliolis majoribus, floribus paniculato-racemosis specibsis, P, cceruleum, 

 Auct. — /3. hiimile; caule solitario 2-3 unciali ad spithamasam, foliolls minoribus, floribus co- 

 rymbosis speciosis. P. ca?ruleuni, nanum. Hook. Spitz. PL in Linn. Trans, v. 14. — P. 

 humile. Willd. Herb, ex JRcem. et Sch. p. 311. Lindl. Bot. Reg.t 1304, — P. Richardsoni. 

 Grah. in Bot. Mag. t. 2800. Hook, et Arn. in Bot. of Beech. Voy. p. J28. — P. speciosum. 

 Fisch. ms. in Herb. Nostr, — P. villosum, ex Don, in Sw. Br. FL Gard. t 266. — P. lanatum. 

 Fisch. in Herb. Nostr. — P. cEcruleum, var. piliferum. Lindl. in Bot. Reg. L 1303. — P. pul- 

 chellum. Bunge^ in Herb, Nostr. (e mont. Altaic). — P. cseruleum, forma? 2, 3, 4, 5, et 6. 

 ChamissOi in Herb. Nostr, — P. moschatum. IVormsk. in Herb. Nostr. — y. pulcherrimum; 

 caulibus aggregatis humilibus gracilibus, foliolis parvis, floribus coi^mbosis duplo triplove 

 minoribus, laciniis subacutis. P. pulcherrimum. Hook, in Bot. Mag. t. 2979. — P. acuti- 

 florum. Willd. Herb, ex R, et. S. Syst. Veg. v. 4.^. 792. 



Hab. *. Canada (Mr. Sheppard) to the bases of the Rocky Mountains {Drummond) and Arctic Coast, 



