Hdianthemum.] CISTINEJE. 



71 



termiData, long-e stipitata. Thecaphorum e toro minuto calyce corollaque persistentibus tecto. Semina 

 numerosa, plurima abortiva, obovata, subreniformia, dependentlaj fusca. 



Har Common in North-West America; on the banks of the Columbia; and in the rallies of the Blue 

 Mountains, sparing:ly; and as far as to the Hocky Mountains. Fl. Juno to August. Douglas. —This is quite 

 a distinct species from any Cleome hitherto described, and remarkable, in the dried state at least, for the deep 

 yellow colour of its petals, which are almost sessile. The leaflets are small, quinate, very similar to those of 

 some of the smaller species of Lupinus, This plant has been cultivated in the Gardens of the Horticultural 

 Society at Chiswick. 



Tab. XXV. Cleome lutea :— natural size. Fig. 1, Flower; Jig, 2, Petal; Jig, 3, Longer stamen; Jig. 4, 

 Shorter do. ; Jig. 3, Pistil, with its stalk or thecaphorum ; fg. 6, Pod, with its thecaphorum arising- from 

 the torus, and surrounded by the persistent floral coverings; Jig. 7, Pod, opened; Jig. 8, Seed; Jig. 9, 

 Flower-bud .• — more or less magnijied, 



2. POLANISIA. Rajin. 



Cal ^-sepalus, patens. Pet 4. Stam, 8-32. Torus parvus. Siliqua in calyce sessilis aut 

 vix stipitata, stylo distincto terminata. — Herba hahitu Cleomis {DC) 



1. P. graveolens ; glanduloso-pilosa, foliis trifoliolatis, foliolis oblongo-elliptrcrs, stamini- 

 bus sub-ll, siliquis late lineari-lanceolatis muricato-glandulosis. ^' Rafin, Journ. Phys, 

 aouf^ 1819. p, 98." De Cand. Prodr. v. 2. p, 249. — Cleome dodecandra. Mich. Am. v. 2. 

 p. 32. Pursk^ Fl. Am. v. 2. p. 441. BigeL FL Bost ed. 2. p. 254. (not Linn.) 



Annua. Radix parva, subfusiformi-fibrosa. Caulis spithamaeus et ultra, erectus, flexuosus, ramosus, ut et 

 fere tota planta mag^is minusve gland uloso-pilosus, subviscosus, foetidus. Ilami erecto-patentes. Folia 

 petiolata, trifoliolata, foliolis unciam sesquiuuciam longis, oblongo-elliptlcis, iutegerrimis, basi attenuatis: 

 PetioH glandulosi, folio vix longiores. Folia suprema vel hractetBy simplicia, lanceolata, breve petiolata. 

 Flores terminales, numeroste, corymb oso-raceraosi, Pedicelli unciam longi, graciles, pubescentes. Cal. e 

 foliolis 4, subpatentibus, iequalibus, oblongo-lanceolatis, acutis, purpureis, dorso glanduloso. Petala pallide 

 snlphurea, fere albida, calyce duplo longiora, longe unguiculata, ungue exserto, limbo late ovato, profunde 

 emarginato. Stam. subundecim, sursum curvata, petalis paululum longiora, basi solummodo monadelpha, 

 hinc uniglandulosa, glandula majuscula, subtetragona, camosa. Filamenta filiformia, purpurea, glabra. An- 

 thercB oblongse, flavae, biloculares, siccitate curvatae. Pistillum : Germen lineare. Stylo filiformi, purpureo, 

 duplo longius, pubescenti-glandulosum. Fructus: Siliqua sesquiuuciam fere ad duas uucias longa, Uueari- 

 lanceolata, acuta, teres, inferne in stipite brevi attenuata, ubique pills vel aculeis brevibus, mollibus, glandu- 

 loso-viscidis tecta, stylo demum deciduo terminata, unilocularis. Semina numerosa, fusca. 



Hab. Lake Champlain. Dr. Bigelow. About Montreal. Mr. Cleghoni.— This very pretty species, 

 rendered particularly elegant by the purple hue of its calyx and the pale sulphur colour of its notched 

 petals, does not seem to be by any means general even in the United States. I have received it only from 

 my friend Dr. Torrey, who gathered it at West Point, near New York, and Mr. Nuttall states it to be 

 an inhabitant of the sandy shores of Lake Erie, and the margins of the Mississippi and the Missouri. Dr. 

 Bigelow ^ves it as an inhabitant of Lake Champlain, which station I have here introduced, from a persuasion 

 that it must grow on the Canadian as well as on the opposite side of the Lake, since I possess specimens 

 from near Montreal, which is quite in its vicinity. 



Ord. XL CISTINE^. Juss. 



I. HELIANTHEMUM. Toum. 



Cal. 3-sepalus, sepalis gequalibus, vel S-sepalus, sepalis duplici serie dispositis, 2 ex- 

 ternis saepe minoribus, raro znajoribus. Pet 5, siepe apice irregulariter denticulata. 



