FRANCHET. — RHODODENDRON DU THIBET ET DU TON-NAN. 233 



tubulosa; stamina 10, exserta, filamentis basi pubescentibus; ovarium lepidolum, stylo 

 ex toto glabro. 



Yun-nan, ad Houang-Li-pin (Delavay, n° 293). 



18. R. rigidum, Sp. nnv. 



Arbuscula. Folia rigidc coriacea, ovato elliptica , supra glabra, lucida, pallidc 

 virentia, subtus glauca, haud dense lepidota, nervis secundariis i-5 immersis. Flores 4-5 

 fasciculati, purpurei vel pallidc rubescentes, pedunculis elongatis simul ac calice 

 glabris; calyx cupuliformis , lobis indistinctis ; corolla vix ultra semipollicaris, basi 

 angustata, subtubulosa; stamina 10, ad basin pilosa; ovarium dense lepidotum, stylo 

 ex toto glabro. 



Yun-nan, ad Lan-kien-ho, alt. 2500 m. (Delavay, n° 837). 



19. R. ciliicnlyx, Sp. UOV. 



Arbuscula. Folia coriacea obovato-lanceolata, glabra, supra pallidc virentia, subtus 

 glaucescentia sat dense lepidota, petiolo brevi lepidoto pnesertim apice hispido; nervi 

 secundarii utriusecus 7-8, subtus paruin prominuli. Flores 7-10 congest! , mox 

 cernui, rubescentes vel pallidc rosei, pedicellis brevibus dense lepidotis; calyx 3-4 mill., 

 Iobis rotundatis longe ciliatis ; corolla fere bipollicaris extus inferne parcc lanuginosa, 

 e basi breviter tubulosa aperte campanulata, lobis 5-6 margine crispatis; stamina 10-12 

 filamentis basi pilosis; ovarium parce lepidotum. 



Yun-nan, prope Mo-so-yn, alt. 2400 m. (Delavay, n° 73G). 



20. R. dendrocharis, Sp. llov. 



Fruticulus vix pedalis, ramis hornotinis hirkellus. Folia parva, coriacea, ovata supra 

 glabra, subtus impresso-lepidota, margine revoluto ciliata, petiolo longiusculo, pilis 

 fuscis quasi crinito; flores inter folia solitarii, vel rarius duo, rubescentes, pedunculo 

 brevi puberulo, pilis longioribus intermixtis; calyx 4 mill, longo, membranaceus, 

 5-partitus, segmentis ovato-lanceolatis acutis longe ciliatis ; corolla vix ultro semi- 

 pollicaris, e basi breviter tubulosa aperte campanulata, intus pubescens, lobis 5 rotun- 

 datis; stamiue 10, inclusa, filamentis basi dense hirtellis, ovarium breviter albopilo- 

 stim, stylo ima basi tantum puberulo. 



Thibet or., circa Moupiue in truncis vetustis (A. David). 



21. R. moupinense, sp. IIOV. 



Frutex humilis, ramis hornotinis glanduloso-pilosis. Folia coriacea, ovata vel ovato- 

 oblonga, glabra, supra pallide virentia, subtus ferruginea, lepidoto-punctata, margine 

 reflexo ssepius ad basin parce ciliato, petiolo pilis nigricantibus hirtello. Flores soli- 

 tarii, albi, purpureo-punctati, pedunculo brevi, lepidoto; calyx membranaceus, 4 mill, 

 longus, lobis rotundatis longe ciliatis; corolla subpollicaris, e basi breviter tubulosa 

 aperte campanulata, intus puberula, lobis 5 rotundatis; stamina 10 inclusa, basi dense 

 iiirtella ; ovarium lepidotum stylo basi piloso. 



Thibet or., circa Moupine, alt. 4000 m. in rupibus vel ad truncos putridos crescens 

 (A. David). 



22. R. campyioffynum Pranch. Bull. Soc. bot. de Ft*., xxxn, p. 10. 



Yun-nan, in monte Tsang-than, alt. 3500 m. (Delavay, n oi 122, 271). Corolla intus 

 testacea, extus atropu.purea; fruticulus 10-20 cent, altus. 



