112 PROCEEDINGS OF THE ACADEMY OF [Jan., 



appear to connect the main types. It is possible that this may in part 

 be the result of hybridization, but we are not entitled to assume this 

 without better evidence. The observed variations are as follows: 

 Bosa peoosensis. 



(1) Upper Pecos-town, June 19. Flowers very fragrant, about 37 

 mm. diameter; sepals entire, rarely with linear lobes; leaflets minutely 

 resin-dotted beneath; leaflets on basal sheets sometimes eleven. In- 

 fested sparingly by Eidecanium. 



(2) Kin Kale Ranch, June 21 (Grabham). Flowers bright pink, not 

 so dark as some; 45 mm. diameter; no strongly notched petal; sepals 

 rarely with linear lobes ; stipules 5 mm. broad or rather more ; leaflets 7. 



(3) Kin Kale Ranch, June 21. (Grabham.) As usual, except that 

 the sepals sometimes show some marginal red knobbed gland-hairs. 



(4) Kin Kale Ranch, June 21. (Grabham.) Flowers very deep 

 red; outer sepals with cjuite a numl^er of red gland-hairs; midribs of 

 leaflets beneath with scattered very short and minute red gland-hairs; 

 leaf-margins inclined to be doubly serrate, the secondary serrations 

 gland-tipped; leaflets almost sessile; flowers single. This is in many 

 respects like the R. arkansana var. o, and could be a hybrid, if hybrids 

 occur. 



(5) Kin Kale Ranch, June 21. (Grabham.) Typical, but stipules 

 variable up to 8 mm. broad. 



(6) Kin Kale Ranch, June 21. (Grabham.) Flowers paler, rose- 

 pink, about 36 mm. diameter; leaves unusually large (upper lateral 

 leaflets up to 33 mm. long); midribs of leaflets lanulose beneath, with 

 only rudimentary gland-hairs; leaflets deeply and simply notched; 

 sepals lanulose, not glandular, with linear lateral lobes; flowers solitary 

 or in pairs; stigmas yellowish in rather advanced bud. This is essen- 

 tially pecosensis, the only material difference l^eing in the paler flowers. 

 Seen from a distance, the flowers of R. pecoscnsis always appear single, 

 as one bud of a pair comes out before the other. The plants are some- 

 times infested by prickly leaf-galls, of the species Rhodites spinoselliis 

 Ckll. 



Rosa prsetincta. 



No varieties were found. In Watson's table this species runs to R. 

 hlanda, except that the sepals are not entire. In Crepin's table it also 

 runs to blanda, except that the flowers are comparatively small. There 

 is no R. blanda in New ^lexico, however. 

 Rosa arkansana var. a. 



I had considered this to be the true R. fendleri of Crepin, not of 8. 

 Watson. Dr. Rydberg, to whom I sent a copy of my description, wrote 



