828 CXI. HYDROPHYLLACE^; [Phacdieic. 



rotata, raiius tubiilosa v, infuiidibnlaris, in\-)0 intus sqiiamellis inter stflmina geminis di- 

 stinctis V. ante stamina per paria coalitia et basi filamentorum adnatis instructo 

 V, nudo ; lobi 5, iinbricati. Stamina^ 5, basi corollre afl&sa, exsurta v. inclusa ; antherce 

 ovatfe- Ovarium 1-loculare, placentis 2 panim prominnlis angustis V- leviter dila- 

 ^afis parieti affixis v. rarissime demnm solutis ; stylus filiformis, breviter t, a<l 

 medium 2-fidus, stigmatibus minutis v, capitatis ; ovula sub apice afiixa, ad quamque 

 placentam gemina v, plura. Capsula l-locularis v. placentis in centro fere contiguis spiirie 

 2-locularis, 2'VaIyis, valvis medio septiferis placentas ferentibus, Semina inigosa t; 

 tnberculata. — Herbse annufe v. perenne.s, saepins scabro-piibescentes v. hispidsg, nunc 

 erects elatse siuipHces v. ramosrej nunc humiles diffuaaa rfimosissimoe v, ci^spitosai. Folia 

 pinnatim lobata v, dissecta, rarius indi^ isa grosse dentata Y. integerrima, Flores cjcrulei 

 violacei v. albi. Cymee terminales, seepius pedunculatje v. ad racemum simplicem re- 

 duct^e, fioribus secua ramos scorpioideos unilateraliter sessilibna v. breviter pedicellatis, 

 infloresccntia primum srepe capitatim conge&ta demtun laxa, 



'"'Species 50, Araenca? borealia imprimis occidentalis, Mezici vt Andhim Gliilensium iiicolie. J. 

 BC/Ptbd. is. 298; Walp. E(f:x\. 625; Ann. i. 518; iii. 101 ; v/526, 527 {Phacdia, Eutoca it 

 Cosmanthus), Torr. Hot. Emory Exped. 143 ; Bot. Ives Exped. 21 ; Bot. Pope Exped. t. 10 ; BoL 

 Bcckw. Exp. 8 (122), t. 7, et in Wats. BoL 40 ParalL 250 ct in Ann. Lye. N. YorJc, ii. i. 3. Mich. 



r 



FL Bor.Amer, t. 16. La7n, in Journ.Kat. Hist, i- /. 19 {HydrophylliiTn): Jacq.f.EcL L 91, C. Gay, 

 FL Chil L 53. Wedd. Cklor, Ami t. 58, C- Bot. Mag. t. 3452, 3703 {Phao€lia)et 2985, 3003, 3572, 

 .3706, 3762, 5029 (BM^r?c«fj^ Cosmanthis). Bot. Hey. t 1696 (PJ/acelia) ct 1180, 1784, 1808 (Eutoca). 

 Su\ Brit. Fl Gard. sen 2, t, 327, 360 (Phacelia) et 334, 362, 368 {Eutoca), 



Genus poljmorphum ab^ auftoribus citatis haud felieiter in genera plura divisum, quorum in- 

 ^Tgnioria sunt: P/iffc^^z^, placcDtis 2-o^-ulatis, fi^/^ct?, placentis cc-ovulatis, Co.'imanthus .squamellis 

 ante filamenta per paria connatis.et filamento adnatis, Microgenetes, ^q\i^xafi\\i^ niillis, Whitlaviat 

 corolla ample tiibuloso-campannlata, sed characteres e nuinero ovulorura sunipti ncc cum squaniel- 

 larum indole nee cum habitu congruuot, et quoad coroUse, formam Whttlavia minus a Cosmaniho 

 tliffert quam species plures Eutoca inter se. A. Gray tandem in Prop, Amer, Acad. %. 316 nuperrimc 

 edito sectiones sequcntes proposuit imprimis adi oyuIsi ct semina'dis'tinetas : 



1, Eiijyhacelia. Placentae 2-OTulat3e, Semina verticalia, testa areolatavel alveolata; corolla? lobi 



baud fimbriati, tubo plicis lamelliformibus per paria justa basin staminum. Species 13, 



2.' Cosmanthus. Corolla subrotata, lobis fimbrintis, plicis' nxillis. Cf^tera Eitphaeclii^. 'Herbfe 

 ^annnse, parvulre. Cosmanthi sect. EncosrtKmthus, DC, Species 2, Americse boreali-orien talis. 



3. CosmantJtoides, Placentae 3-8-ovulatas rarissime 2-ovulatBe; semina verticalia, testa reticu- 

 lata; corolla rotato-campanulata, plicis nuUis vel inconspicuis (perangustis) pdr |^ria approxiraatis 

 a stamiuibus remotis ; capsula subglobosa, obtusissima. Herbfe humiles vel tencUfe, hirsuto-pube- 

 scentes, foliis pinnatifidis, floribus raceniosis. Species 5, America? boreali-orientalis t. Mexicanip, 



4, Gynmofiythus. Placentae dilatatse, multiovulata} ; semina parum descendentia, testa foveoLita; 

 corolla rotato-eampamdata, iutus cum filaincntis subiequilongis prorsus inappendiculata ; stylus 

 2-partitus ; capsnla ovata, apice cuspidato-acuminata. Herbae annual, glanduloso'viscidissiniffi, foliis 

 ovatis dentatis, r^iccnais solitariis vel geminis Icixilloris. CosmantJfUs set^t. Gymnobytkus, A. DC, 

 Species 2, Californicse, " ' 



6. Whitlavia. Placentae mnltiovulatfe, raro pauciovulatas; semina prsecedontium ; corolla plicis 

 destituta, sed filamenta (capiikria exserta) ima basi intus sqnamula parva truncata yel omarginata 

 adnata appendiculata. Herbae annuse, facie praecedentium, at minus glandnlosaj, pedicellis petio- 

 Hsque longioribiis, stylo fere semi-2-fido. Species 3, Californicae. 



' 6. Etrtoca. Placenta; 6-multi-ovulatse ; semina pendula vel descendentia, fcsti reticulata vel foveo- 

 lata, nee rugosa ; corollae plicae 10 verticales, lamelliformes ; capsula ovata seu oblonga. Eutoca, R, 

 Br exd. sp, Eutoca sect OrtJicufoca^ A.DC. Species 19, Herbse Americse borcalis, plerumque occi- 

 d en tales. « 



7. Microgenetes. Semina oblonga transversira corrugata, vermicullformia ; cetera Eutoas, 

 Annuse, humiles, foliis plerisque pinuatifidis; stamina in^equalia inclusa; stylus apice tantum 

 2-fidus. Species 7, omnes occidentals, umi Cliilensi inclusa, 



--;5. Conanthus, Torr. in S. Wats. But ,40 Parall. 25G. (Eutoc® sect. Conanthus, A. 

 DC. Prod. ix. 295.)— Calycis lobi lincai-es, sinubua nudis. Corolla tubuloso-infundibu- 



