| Philadelphus acuminatus Lange | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus affinis Schltdl. | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus argenteus Rydb. | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus argyrocalyx Wooton | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus aromaticus Aiton | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus aromaticus Steud. | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus asperifolius Körn. | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus austromexicanus S.Y. Hu | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus bifidus (C.L. Hitchc.) S.Y. Hu | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus billiardii Koehne | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus brachybotrys (Koehne) Koehne | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus × burkwoodii auct. | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus calcicolus S.Y. Hu | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus californicus Benth. | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus calvescens (Rehder) S.M. Hwang | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus caudatus S.M. Hwang | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus chinensis K.Koch | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus cinereus Hand.-Mazz. | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus columbarius Dippel | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus columbiensis G.Nicholson | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus confusus Piper | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus × congestus Rehder | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus cordatus K.Koch | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus cordifolius Lange | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus coronarius L. | Accepted |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus coulteri S. Watson | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus crinitus (C.L. Hitchc.) S.Y. Hu | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus × cymosus Rehder | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus dasycalyx (Rehder) S.Y. Hu | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus delavayi L.Henry | Accepted |  | WCSP (in review) | 2012-03-23 | 1 | 
	
		
			| Philadelphus dubius K.Koch | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus ellipticus Rydb. | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus ernestii S.Y. Hu | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus falconeri G.Nicholson | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus floribundus Schrad. ex DC. | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus floridus Beadle | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus fremontii Rydb. | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus gattingeri S.Y. Hu | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus glabripetalus S.Y. Hu | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus globosus K.Koch | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus gloriosus Beadle | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus godohokeri Petz. & Kirchn. | Unresolved |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus godokokeri K.Koch | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus gordonianus Lindl. | Accepted |  | TRO | 2012-04-18 | 1 | 
	
		
			| Philadelphus gracilis Huguenin ex Colla | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus gracilis DC. | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus grahamii K.Koch | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus grandiflorus Willd. | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus henryi Koehne | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus hirsutus Nutt. | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus hitchcockianus S.Y. Hu | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus humilis DC. | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus igneus G.Nicholson | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus imbricatus Sol. ex Gaertn. | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus incanus Koehne | Accepted |  | TRO | 2012-04-18 | 1 | 
	
		
			| Philadelphus inodorus L. | Accepted |  | TRO | 2012-04-18 | 1 | 
	
		
			| Philadelphus insignis Carrière | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus intectus Beadle | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus japonicus G.Nicholson | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus kansuensis (Rehder) S.Y. Hu | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus karwinskyanus Koehne | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus keteleeri Carrière | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus koreanus Nakai | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus kunmingensis S.M. Hwang | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus lancifolius Koehne | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus lasiogynus Nakai | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus laxiflorus Rehder | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus ledebourii K.Koch | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus lemoinei auct. | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus lewisii Pursh | Accepted |  | TRO | 2012-04-18 | 6 | 
	
		
			| Philadelphus lushuiensis T.C. Ku & S.M. Hwang | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus macranthus Jacques | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus maculatus (C.L. Hitchc.) S.Y. Hu | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus madrensis Hemsl. | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus matsumuranus Koehne | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus matudae Lundell | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus × maximus Rehder | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus mearnsii W.H. Evans ex Rydb. | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus mexicanus Schltdl. | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus microphyllus A. Gray | Accepted |  | TRO | 2012-04-18 | 5 | 
	
		
			| Philadelphus × monstruosus Rehder | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus myrtoides Bertol. | Accepted |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus nanus Mill. | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus nepalensis Koehne | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus nepalensis Wall. ex Loudon | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus nitidus A.Nelson | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus nivalis Jacques | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus nivalis K.Koch | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus niveus K.Koch | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus oblongifolius S.Y. Hu | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus occidentalis A. Nelson | Accepted |  | TRO | 2012-04-18 | 1 | 
	
		
			| Philadelphus oreganus Nutt. | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus oreganus Nutt. ex S.Y.Hu | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus osmanthus S.Y. Hu | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus palmeri Rydb. | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus parviflorus Carrière | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus pekinensis Rupr. | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus pendulifolius Carrière | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus × polyanthus Rehder | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus primuliflorus auct. | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus pringlei S.Y. Hu | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus pubescens Loisel. | Accepted |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus pueblanus S.Y. Hu | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus pulchellus G.Nicholson | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus purpurascens (Koehne) Rehder | Accepted |  | TRO | 2012-04-18 | 2 | 
	
		
			| Philadelphus purpusii Brandegee | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus reevesianus S.Y. Hu | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus robustus Nakai | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus roylei K.Koch | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus salicifolius K.Koch | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus salzmannii K.Koch | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus sargentianus S.Y. Hu | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus satsumanus Miq. | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus satsumi Siebold ex Lindl. & J. Paxton | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus scaber Nakai | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus schrenkii Rupr. | Accepted |  | TRO | 2012-04-18 | 1 | 
	
		
			| Philadelphus seoulensis Y.H.Chung & H.Shin | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus sericanthus Koehne | Accepted |  | TRO | 2012-04-18 | 1 | 
	
		
			| Philadelphus serpyllifolius A. Gray | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus sharpianus S.Y.Hu | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus shikokianus Nakai | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus speciosus Schrad. ex DC. | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus speciosus K.Koch | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus × splendens Rehder | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus stenopetala Carrière | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus subcanus Koehne | Accepted |  | TRO | 2012-04-18 | 1 | 
	
		
			| Philadelphus tenuifolius Rupr. | Accepted |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus tetragonus S.M. Hwang | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus texensis S.Y. Hu | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus thyrsiflorus G.Nicholson | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus tomentosus Wall. ex G. Don | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus trichothecus S.Y.Hu | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus triflorus Wall. ex S.Y.Hu | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus triflorus Wall. | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus trinervius Schrad. | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus tsianschanensis Wang et Li | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus umbellatus Koehne | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus undulatus K. Koch ex Koehne | Unresolved |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus viksnei Zämelis | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus villosus Lodd. ex W.Baxter | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus × virginalis Rehder | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus wootonii S.Y. Hu | Accepted |  | TRO | 2012-04-18 |  | 
	
		
			| Philadelphus yangjiaensis Y.T.Zhao & H.Xie | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus yokohamae Dippel | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus zelleri S.Y.Hu | Unresolved |  | WCSP (in review) | 2012-03-23 |  | 
	
		
			| Philadelphus zhejiangensis S.M. Hwang | Accepted |  | TRO | 2012-04-18 |  |