﻿PLANTS FENDLERIANiE. 39 



f 180. Calliandra? herbacea (Engelm. Mss.): "caule hunrili erecto flexuoso ad- 

 presse piloso ; stipulis lanceolatis nervosis ; foliis longe petiolatis ; pinnis 3-4-jugis; 

 foliolis 20 - 30 obliquis oblongis obtusiusculis ciliatis supra glabris subtus laxe reticularis 

 adpresse pilosis; capitulis florum biuis folio brevioribus, pauci- (8 -10-) floris ; calycibus 

 tubulosis 4- 5-dentatis, dentibus tubo subbrevioribus ciliatis; tubo corolla; calycc triplo 

 longiore dentibus obtusiusculis apice parce pilosis; staminibus 25-30 corollam longe 

 superantibus. — Between San Miguel and Las Vegas ; flowering in August. — Plant 

 apparently perennial, 6 inches high : leaves with petioles 3 inches long : leaflets 3 lines 

 long : heads about one inch in diameter, on peduncles of one inch in length. Flowers 

 polygamous : a fertile flower which I examined had four calyx and four corolla teeth, a 

 sterile one, five teeth : stamens united at the base, more so in the fertile flower. Ovary 

 elongated, with many ovula and the tumid sutures glabrous." Engelm. — There is 

 another apparently new species in the collections of Wislizenus and Gregg.* 

 S 181. Mimosa borealis (sp. nov.) : fruticosa, erecta, glaberrima ; ramis aculeis in- 

 fra stipularibus solitariis validis patentissimis rectiusculis armatis ; foliis parvis, pinnis 

 1 -2-jugis petiolum aequantibus, foliolis 4-5-jugis ovalibus vix inaequilateralibus crassius- 

 culis (floribus ignotis) ; leguminibus oblongis stipitatis 2-4-spermis glabris margine spar- 

 sim uncinato-aculeatis, valvulis in articulos2-4 secedentibus. — Hill-side, Upper Spring, 

 on the Cimarron ; August. — The specimens have ripe fruit, but no flowers. They ap- 

 pear to belong to an upright shrub. The branches are armed with very stout and slightly 

 hooked, scattered, infrastipular spines. The common petiole is only half an inch in 



* C Cham^deys (Engelm. Mss.) : " fruticosa, humilis ; ramulis petiolisque brevibus eglandulosis pubescen- 

 tibus ; foliis 2 - 3-jugis rarius 1-jugis; foliolis 6- 12-jugis minutis ovatis obtusis seu acutiusculis supra glabris 

 subtus pilosis; stipulis subulatis rigidis erectis subpersistentibus ; capitulis breviter pedunculatis singulis binisve 

 pauci- (4- 8-) floris ; floribus hermaphroditis ; calyce campanulato subinsequaliler 5-dentato, dentibus obtusis 

 pilosis; corolla tubuloso-campanulata calycem ter quaterve superante ad medium 5-fida extus pane pilosa 

 (purpurea), lobis lanceolatis acutis suboequalibus ; staminibus polyadclphis basi in tubum connatis elongatis 

 tenuissimis circiter 35; ovario lineari-lanceolato suturis incrassato glaberrimo; stylo tenuissimo capillaceo 

 stamina superante; stigmate capitato; legumine lineari-lanceolato stipitato acuminato (immaturo) albo-seri- 

 ceo marginibus valde incrassatis subnudo. — Chihuahua, Dr. Wislizenus, Dr. Gregg; flowering in April. — 

 Stems squarrose, much branched, 3 to 12 inches high, stout. Leaves 4 to 8 lines long : leaflets £ to 1 lint- 

 long. Peduncles 3 to 4 or 5 lines long. Stamens an inch long. Legume 1£ to 2 inches long, ^ inch wide, 

 white silky, while the ovary is perfectly glabrous ! — The specimens of Dr. Wislizenus, from Bachimba, 

 are smaller, more branched ; the leaflets smaller, obtuse, more hairy, and not more than bijugate, the lobes of 

 the corolla recurved. Dr. Gregg collected in the Canon of Ojito larger specimens, with often acutish leaflets, 

 and larger flowers, with the lobes of the corolla erect. — Apparently near C. Californica and C. Xalapensis. 

 Benth., but well distinguished by the very small leaflets, &c." Engelm. 



