1126 BULLETliN DE L'HERBIER BOISSIER. 



arillata 246; Balansae 246; Chamsebuxus 246; Chamaebuxus var. grandiflora 

 471; Chamaebuxus var. rhodoptera 471; gigantea 247; grandifolia 246; laureola 

 246, 247 ; ligustroïdes 246, 247 ; oleaefolia 246 ; robusta 246 ; salicina 246 ; vene- 

 nosa 225, 246, 247; violioïdes 247. — Polygonatum niultiflorum 266, 268; 

 vulgare 266, 268. — Polygonum Bellardi 283; bistorla 268 ; Convolvulus 261; 

 dumetorum 261; hydropiper 572; viviparum 268, 272. — Polymeria lanata 

 810. — Polypodium fdix mas 570; piloselioides 30; rude 30; vulgare 570, 829. 



— Polysiphonia collabens 983 ; elongata 983 ; floccosa 984 ; i'urcellata 983 ; 

 Nemalionis 984; obscura 983; parasitica 983; pinnata 984; repens 984; secunda 

 984; sertularioides var. tenerrima 984; subtilis 984; Lenerrima 984; variegata 

 984. — Polytrichum angustifolium 178; Bemoiillii 178; Carionis 177; glaci- 

 caide 549 ; Humboldtianum 178; leptopelma 178; urnigerum 178; volcatum 177. 



— Populus alba 235, 237, 238, 240, 241, 243; angulata 239, 240, 241, 242, 

 243, 244; canadensis 241, 242, 243: candicans 234, 235, 237, 238, 243; canes- 

 cens 241; fastigiata 245; nigra 244, 246; pruinosa 243; tremula 229, 232, 234, 

 241, 243, 244; virginiana 236, 237, 241, 243. — Porana deusiflora 1007; velu- 

 tina 1009; volubilis 382. — Porina africana 17; dolichophora 24. — Poro- 

 phyllum ellipticum 20. — Porotrichum Cobanense 202; gymnopodum 203; 

 undnlatulum 203. — Porphyra laciniata 977; leucosticta 977. — Portulaca 

 quadrifida app. III, 84. — Posidonia oceanica 962, 972, 977, 982, 988. — 

 Posoqueria latifolia 30. — Potaniogeton acuminatus 412; acutifolius 415, 

 416; angustifolius 408; Babingtonii 414, 415; compressus 415, 416; coriaceus 

 410, 515; crispus 410, 414, 423; crispus X prselongus 414; decipiens 8, 405, 

 408, 413, 418 à 423; X decipiens forma app. I, 3, 6; decipiens f. major 420; 

 decipiens f . pulchella minor 420 ; decipiens f. transiens 420, 421 ; decipiens f. 

 typica 419, 420; decipiens var. upsaliensis 419, 420, 421, 422; X decipiens 

 var. upsaliensis forma app. I, 3, 6; densus 5, 6, 7, 8, 410, 423; filiformis 410 ; 

 flabellatus 12; flexicaulis 412 ; flexuosus 412; fluviatilis 12; Friesii app. I, 3, 6, 

 405, 410, 415, 416, 417, 418; Friesii var. obtusus 418; gramineus 406, 408, 

 410, 411; gramineus X perfoliatus 406; gramineus X prœlongus 409; inter- 

 ruptus 12 ; lanceolatus 419; lithuanicus 419 ; longifolius 414, 419, 420; lucens 

 4, 408, 410, 414, 415, 419, 420, 422, 423 ; lucens X perfoliatus 419, 422, 

 app. I, 3 ; lucens X prœlongus 423 ; lucens X rufescens 423 ; macrophyllus 

 420, 422, 423; mucronatus 415, '416; natans 4, 410, 423; nitens 405 à 413 ; 

 nitens forma app. I, 3, 6; nitens f. typica 409; nitens var. curvifolius 409 ; 

 nitens var. latifolia 409, 413; nitens var. praelongifolia 409, 413; obtusifolius 

 415, 416, 417 ; obtusifolius f. acutus 418 ; obtusifolius f. muticus 418 ; obtusifo- 

 lius f. obtusus 418 ; obtusifolius var. angustifolius 418 ; obtusifolius var. lati- 

 folius 418; OEderi 416; pectinatus 4, 5, 9, 11, 12, 14, 410, 423; pectinatus 

 var. 6, 7, 8, 13 ; pectinatus var. fluviatilis 12 ; perfoliatus 4, 5, 8, 408, 409, 

 410, 411, 413, 419, 420, 422, 423 ; prœlongus app I, 3, 6, 405, 406, 408, 411, 

 412, 413, 414, 415, 422, 423; prœlongus f. steiïlis app. I, 3; pusillus 410, 416, 

 417, 423 ; pusillus var. major 415, 416; rufescens 410, 423 ; rutilus 415; sali- 



