40 Addenda et Corrigenda. 
Patellaria Gray 1905. 
Patomia Std. 9319. 
Pattersonia Wst. 3638. 
Pattonia Wight 3865/1. 
Pavonia Domb. 7637. 
Pechea Arr., Std. 8515. 
— Pourr. 2722. 
Pectinea Gärtn. 12741/1. 
Pectoraria Nees 8222b. 
Pegamaea Dumort. 7034. 
Pegamea Yitm. 7034. 
Pegia Colebr. 11192. 
Peireskia Std. 10037. 
Pela Rheede 11783. 
Peliostomum Benth. 7951. 
Pellinia Molin. 10381. 
Peltaria Burm. 12366 
Peltostegia Turcz. 10281/1. 
Pemphidia Dumort. 808/4. 
Pentapteris Griseb. 10607 (b). 
Pentapterophyllum Wst. 11514a. 
Pentastemum Std. 7933. 
Pentestemon Dumort. 7933. 
Penthanthus Std. 6349. 
Pentorobum Beckm. 9175. 
Pepronia Dumort. 4599. 
Pereiria Wst. 9248. 
Perepusa Std. 7394. 
Peribea Dumort. 4724 
Perimenium Std. 5746. 
Peripea Std. 8028. 
Peristylis Wight 4093. 
Perizoma Miers 7841b. 
Permna Dumort. 7580. 
Perostema Rausch. 5027b. 
Petasodes Spreng. 9395d. 
Petellaria Dumort. 1905. 
Peterospermum Wight 10315. 
Petraea Ung. 11443. 
Petrocalis Dumort. 9540. 
Petrotheca Rudge 12887/1. 
Peurousea Std. 5949. 
Phacellaria Willd. 2870. 
Phaelypaea P. Browne 8452. 
Phaenix Dumort. 4482. 
Phaeocarpos Std. 10704. 
Phaethusa Gärtn. 5753a. 
Phaetusa Schreb. 5753a. 
Phagnalion Wst. 5536. 
Phaios Wst. 3895. 
Phajas Wight 3895. 
Phalona Std. 2961 a. 
Pheboanthe Wst. 7547b. 
Phegonium Ung. 4675. 
Philippodendrum Poit. 10320. 
Phillanthus All. 11093. 
Phillipaea Wight 8452. 
Phillis Ali. 6641. 
Philodendrum Std. 4365. 
Philodyce Std. 3294. 
Philostemon Raf. 11199c. 
Philostemum Std. 11199c. 
Phipsia Wst. 2824. 
Phiteuma Ali. 6604. 
Phitolacca All. 10179. 
Phlaeospora Westend. 1829. 
Phlebolithris Std. 8555. 
Phloraostachys Beer 3772d. 
Phragmitis Beck. 2850. 
Phreatea Wight 3851. 
Phthecrospermum Std. 8060. 
Phylesia Dumort. 3563. 
Phyllactis Std. 5674. 
Phyllites Brgn. 4320. 
— Sternb. 4540. 
Phyllobryum Wst. 4599a. 
Phyllodiastrum Walp. 12Q56b. 
Phyllostachys Torr. 3122. 
Physalobium Std. 12280. 
Physanthera Bert. 3998. 
Physarus Lindi. 4249/2. 
Physema Rchb. 9880. 
Physicarpus Wst. 12033. 
Physingia Std. 3905. 
Physocarpus Wst. 9392b. 
Physocodon Turcz. 10303/1. 
Physophora Hfmsg. & L, 9017. 
Physydrum Rafin. 443. 
Phytarrhiza Yis. 3777/1. 
Phytocrena Std. 9293. 
Picardenia Std. 5837. 
Picrophleus Dumort. 7047b. 
Picrorrhiza Wst. 8020. 
Pieraea Walp. 5580. 
Pierardea Wight 11088. 
Pilobolus Braun 790/1. 
Pinckeneya Dumort. 6865. 
Pinckneya Rich. 6865. 
Pinus Brgn. 4554 B. 
Piperodendron Heist. 12747/1. 
Piptochlaena Wst. 7657c. 
Piptosaccos Turcz. 10586/1. 
Piptostegia Hoffmsg. 7751. 
Piptostemum Std. 6343b. 
Pistolochia Bernh. 9482. 
Pistorina Dumort. 9162. 
Pistorinoides Dtr. 9165b. 
Pithecellobium Wst. 12578. 
Pithecollobium Std. 12578. 
Pithuranthos DC. 8839b. 
Pityranthe Thwait. 10341/2. 
Pityrophyllum Beer 3766/1. 
