OF ARTS AND SCIENCES. 283 



upper, where it connects with the narrow and salient ventral carina. 

 There is hardly a doubt of the essential identity of the Califoruiau 

 with the ChiHan species, although mature specimens of the latter are 

 to be desired. And it is most probable that it is indigenous to both 

 regions. 



•i- H— Scutellati: nuculas fere rectae, intus supra basim caruncula ovato- 

 deltoidea applanata seutelliformi sub centro pervio vix excavata 

 instructcE : folia inferiora opposita. 



P. PROCUMBENS. EritricMu7n procumbens, DC. Prodr. x. 133 

 {Myosotis procumbens, Colla, 1. c, ex DC.) ; PI. Chili, Bertero, no. 

 145. A slender little plant, which, by the well-developed caruncle 

 (the centre of which is perforate, although the nutlet is hardly at all 

 excavated underneath it) apparently should belong to this genus, 

 rather than to Krynitzkia. The nutlet is little over half a line iu 

 lengtli. 



H— H— -(— Lnperforati : nuculce magis incurvae, medio-fixiE, ad inser- 

 tionem baud excavatoe, caruncula parvula imperforata struma^formi 

 vel linguoeformi instructte : gynobasis parva, vix hemisphajrica. 



■H- Chilensis, tenellus, " papyros violaceo colore tingens" (Ruiz & 



Pa von), microcarpus. 



P. TiNCTORlus. Lithospermum tinctorium, Ruiz «& Pav. Fl. Per. 

 ii. 4, t. 114. L. tingens, Lehm. Eritrichium tinctorium, A. DC. 

 Prodr. X. 132. 



•H- ++ Amer. Bor.-Occidentales. 



= Nucula; maturoa intus concava^, basi apiceque abrupte contractis 

 quasi cruciatim quadrilobse, vitreo-crustacese, nitidulae, dorso trans- 

 versim lineato-rugosa?, nempe lineis rectis angustissimis impressis 

 inter rugas latas a marginibus subcristatis ad carinam parum 

 elevatam percurste : herboe parvulte, erector ; calyce alte 5-fido 

 persistente vel sero juxta basim imperfecte circumscisso, lobis lato- 

 lanceolatis pube primum rufescente demum fulva villosis. 



P. TENELLUS. Myosotis (Dasymorpha) tenella, Nutt. in Hook. 

 Kew Jour. Bot. v. 295. Eritrichium tenellum. Gray, Proc. Am. Acad. 

 X. 57, & Syn. Fl. ii. 192. E. fulvum, "Watson, etc., non A, DC. 

 Calyx fructifer lin. 2 longus. Nuculai lineam longse, insigniter quadri- 

 lobae (basi fere ut apice contracta), pi. m. muriculato-asperatte. — Not 

 uncommon from British Columbia east to Idaho and south to San 

 Bernardino Co., California, chiefly iu the western part of the interior 



region. 



