784 



C. SKOTTSBERG 



loi. Nicotiana cordifolia Phil. Skottsb. 3. 168. 



Add Masafuera: Q. del Ovalo and Q. del Mono (P. Aravexa 1941), the 

 first finds north of Casas Valley (GOODSPEED I.e. 125). 



102. Mimulus glabratus H. B. K. var. externus (Skottsb.) Skottsb. AI. 

 parviflorus Lindl. var. exter7ia Skottsb. 3. 168. 



Grant 1. c. 194 reduced parinjiorus to glabratus as a variety. The island 

 form differs from both in the upper leaves, which are distinctly petiolate, from 

 parvifloms in being perennial. Stem pubescent, finally glabrate, petioles and leaf 

 base with patent hairs along edge, blade puberulous on both faces. Pedicels 

 short, 5 — 10 mm, pubescent. 



104. Plantago fernandezia Bert. Skottsb. 3. 171, 5. 158. 

 Add Masatierra : near summit of El Yunque, Tenz no. 61! 



108. Coprosma Hookeri (G. Don) W. R. B. Oliver I.e. 141. C. triflortnn 

 (Hook, et Arn.) Benth., et Hook. f. Skottsb. 3. 172, a combination not in ac- 

 cordance with the Rules. 



109. Coprosma pyrifolia (Hook, et Arn.) Skottsb. 3. 173. Feminine gender 

 now generally accepted. 



113. Wahlenbergia Grahamae Hemsl. Skottsb. 3.178, 8.362. 



Add Masatierra, Co Central, 400 — 450 m, fi. 28 12 1934, BoCK no. 59! 



115. Wahlenbergia Berteroi Hook, et Arn. Skottsb. 3. 179, 5. 158, 8. 362. 

 Add Masatierra: Pangal, fi. 612 1935, BoCK no. 125! Pto Frances, Tenz 

 I.e. pt. 5: 4. 



Robinsonia DC. 



In my treatment of this genus I criticized the tendency to split genera when 

 nothing is gained in the direction of a better understanding of their components. 

 I pointed out that Robinsonia includes two different entities, of which one is 

 monotypic [R. macrocepJiala)\ they are related to each other while differing from 

 all other genera with the exception o{ Rhetinodendron. Twenty years have passed 

 since this was written; the splitting process which, in numerous instances, means 

 going back to an earlier generic conception, has continued, and I am convinced 

 that if a new attempt is made to monograph the Compositae, Robinsonia will 

 not be left standing in its present sense. R. macrocephala will either become 

 the sole member of that genus, or be excluded under a new generic name. 

 Fortunately it is possible to take the latter course. 



De C.\ND0LLE, I (1833) 333, founded the genus Robi>isojiia on two species 

 discovered by Bertero, but they were not described by him but by Decaisne, 

 as R. Guyana and A', thurifera I.e. 2 (1834) 28, where also A', macrocephala, 

 a species not collected by Bertero, was described. That DE Candolle did 

 not have macrocephala before him is evident from his generic description: "Achenia 

 glabra . . . Pappus i-serialis pilosus scaber caducissimus," while Decalsne has 



