1347 



COLLOMIA* heterophylla. 

 Various-leaved Collomia. 



PENTANDRIA MONOGYNIA. 



Nat. ord. PoLEMONIACEiE. 



COLLOMIA. — Suprd, vol. 14. fol. 1166. 



C. heterophylla ; glanduloso-pubescens, foliis inferioribus pinnatifidis incisis, 

 superioribus cuneatis pinnatifidis v. incisis, supremis (involucri) oblongis 

 acutis integerrimis. 

 C. heterophylla. Hooker bot. mag. 2895. 



Annua, prostrata, ramosissima, undique pilis glandulosis viscosis obsita. 

 Folia infima sublyrata, proxima pinnatifida laciniis oblongis incisis, supe- 

 riora cuneata v. pinnatijida incisa, involucralia oblonga, acuta, integerrima, 

 subverticillata. Flores congesti, subseni, involucro- breviores. Calyx in- 

 fundibularis, pentagonus, tubo tnembranaceo, limbo erecto : laciniis ovatis, 

 acuminatis, foliaceis, sinubus leviter gibbosis. Corolla infundibularis, calyce 

 duplb longior et multo angustior, tubo gracili pilosiusculo, limbo piano, 

 roseo, 5-partito, laciniis oblongis, obtusis. Stamina 5, quorum tria fauce 

 inserta intermedio longiore, duo supra medium tubi subsessilia. Ovarium 

 ovatum, 3-loculare, polyspermum. Stylus cum ovario continuus, Jiliformis ; 

 stigmata tria, linearia, intus papillosa. Ovarium oblongum, calyce ves- 

 titum, "i-loculare, loculicidb dehiscens, loculis trispermis, valvulis ab axi 

 placentiferd triangulari secedentibus. Semina oblonga, utrinque truncata, 

 testd mucilaginosd ; embryo in axi albuminis carnosi. 



A little annual plant, beautiful when minutely examined, 

 but not particularly attractive at first sight. Native of the 

 north-west of North America, whence it was sent to the 

 Horticultural Society by Mr. Douglas in 1826. When 

 once introduced into a Garden, it soon becomes a weed, 

 sowing itself in waste ground, or wherever the soil is suf- 

 fered to rest undisturbed. It offers what seems to be an 

 explanation of the nature of the supposed spiral vessels in 



* See fol. 1166. 



