1696 



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* PHACELIA tanacetifolia. 

 Tansy-leaved Phacelia. 



PENTANDRIA DIGYNIA. 



•Nat. ord. HYDROPHYLLEiE, R. Br. (Introduction to the Natural SyS' 

 te7)i of Botany, j}.24i4.) 



PHACELIA. Juss. Corolla decldua. Ovarium ovoideo-globosum, plloso- 

 hispidum. PlacentcB lineares, ssepuLS dorso parletibus ovarii adnata^, biovulatae. 

 Capsula dissepimentis subcompletis pseudobilocularis. — Herbte annucB v. 

 perennes, erectce v. diffuses . ¥\ores racemosi, densi, sessiles, v. laxi pedun- 

 culati, cymis unilateralibus simplicibus v. dichotomis. Bentham MSS. 



P. tanacetifolia ; scabro-pubescens v. hispida ; foliis bipinnatifidis : segmen- 

 tis oblongis dentato-pinnatifidis, calycis laciniis oblongo-linearibus hispidis, 

 staminibus exsertis. Bentham MSS. ' 



P. tanacetifolia, Bentham in Hort. Trans, n.s. vol. l.p. 479. 



Annua. Caulis suberectus, debilis, ramosus, fragilis, subangulatus, ■pilis 

 rigidis incequalibus laxii exasperatus. 'Folia pilis brevissimis asper a, fragilia, 

 subsucculenta, pinnata ; laciniis pinnatifidis lobis ovatis obtusiusculis grosse 

 scrratis. Racemi compositi, more ordinis circinati, hirsutissimi. Calyx 

 ebracteatus, 5-phyllus ; sepalis linearibus, corollce subceqicalibus, 4 omniiio 

 (Ecjualibiis,quintopaululummaJore et sub cestivatione a reliquisremoto. Corolla 

 tubo brevi obconico ; limbo cequali, 5-lobo ; laciniis oblongis subundulatis 

 patulis, CEstivatione imbricaiis. Stamina 5, basi corollce inserta, flamentis 

 S7ibulatis exsertis ; antherae oblong at, flavesce7ites,siibversaiiles. Squama tubi 

 10, membranacece, lunatce, per.paria inter bases flamentorum approximatce, 

 verosimiliter pro antheris sterilibus d dorso tubo corollce adnatis, lobis liberis 

 inembranaccis, habendce. Ovarium parvtmi, ovatum, apice crinitum, uniloculare, 

 placentis 2, erectis, subulatis, linearibus, liberis, (quasi parietalibus solutis), 

 apice et basi ovario adhcBrentibus. Ovula cuique placentce 2, appensa, v. 

 potius peltata, quorum 3 scepius abortimit, uno tantum vivifcato. Capsula 

 loculicido-bivalvis, oblonga, calyce inclusa, monosperma. Semen oblongum, 

 compressitm, scrobiculatum, per lineam totam fere faciem occupanlem 

 jylacenicE adnatum ; embryone in axi albuminis tarnosi, radicula tereti, 

 superd, cotyledonibus oblongis planis longiore. 



* From ^oK-eAoc, a bundle, in allusion to the flowers being collected in close 

 parcels. 



