REFERRED TO. 
IX 
Penn. Voy. to the Hebrides. — Tour in 
Scotland and to the Hebrides, in 
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3 vols. 4to. Lond. 1774—1776. 
Perry's PI. Varvic. Set. — Plant* 
Varvicenses Selectae ; or Botanist’s 
Guide through the County of War- 
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Warwick. 1820. 
Pers. Syn. PI —Synopsis Plantarum 
seu Knchiridium Botanicum, etc. 
Curante C. H. Persoon. 2 vol. 12mo. 
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Pers. Syn. — The same. 
Pers. Syst. Veg. — Caroli a Linu6 equi- 
tis Systema Vegetabilium secundum 
Classes, Ordines, Genera, Species, 
cum Characteribus et Differentii, etc. 
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8vo. Gutting®. 1797. 
Pet. Gazoph. — Gazophylacium Natur® 
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Clarissimi D. Rail Catalogus cum 
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works, 2nd ed. 
Pet. Brit. — The same. 
Pet. Th. Gen. — Genera nova Madagas- 
cariensis, 13 fasc. 8vo. 1810. 
Phil. Comp, for the Orch. — The Com- 
panion for the Orchard. An Historical 
and Botanical account of F ruits known 
in Great Britain. By Henry Phillips, 
F.H.S. new ed. 1 vol.8vo. Lond. 1831. 
Phil. Cult. Veg . — The Companion for 
the Kitchen Garden. History of cul- 
tivated Vegetables, etc. By Henry 
Phillips, F. H. S. new ed. 2 vols. 
8vo. Lond. 1831. 
Phil. Syl. FI. — Sylva Florifera. The 
Shrubbery Historically and Botaui- 
eally treated ; with observations on 
the formation of ornamental Planta- 
tions, and picturesque Scenery. By 
H. Phillips, F. H. S. 2 vols. 8vo. 
Lond. 1823. 
Phil. Pom. Brit. — Pomarium Britan- 
nicum ; an Historical and Botanical 
account of Fruits known in Great 
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1 vol. 8vo. Lond. 1821, 
Phil. Trans. — Philosophical Transac- 
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PI. Faversh. See Jacob's PI. Faversk. 
Plot’s Nat. Hist. Oxf. — The Natural 
History of Oxfordshire; being an 
Essay towards the Natural History 
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Pluk.Alm. Bot. — Leonard Plukenet. 
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Pluk.Phyt. — Leonard Plukenet. Phy- 
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pendium tabu! arum Botanicarum ; 
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Prod. FI. Grcecce. — Flor® Gr*c® 
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Prof. Hensl. in Cat. Brit. — A Cata- 
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with the synonyms of De Candolle, 
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Ptirsh. FI. Amer. Sept. — Flora Ame- 
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Purl. Midi. FI . — A Botanical De- 
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Stratford-upon-Avon. 1817. — An 
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R. 
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Reichenb. Icon. Bot. — Iconographia 
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Rehl. FI. Cant. — Richardi Relhan, 
A. M., etc. Flora Cantabrigiensis, 
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Retz. Prod. FI. Scand. — A. J. Ret- 
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Retz. Prod . — The same. 
Retz. Obs. — A. J. Retzius. Obser- 
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1779—1781. 
