78 BOTANY. 



vided style ) ; filaments from an ovoid-triangular base, (alee partitions entire, 

 membranous; stipular glands evident, (as fchej are in my specimens of the 

 following Bpecies I. My specimens are very slightly glaucous. (15.) Gravel 

 hills back of Santa IV. N. Mex., at 7,050 feel altitude. 



Linum Beblandiebi, Book.— Erect, annual, stem distinctly striated, 

 Blightly puberulent; lower leaves obtuse, upper slightly mucronate, longer 

 i»n the average than in the preceding species, which it so closely resembles 

 that I know id no way of distinguishing them. Bave by the character of the 

 false dissepiments (as indicated by J >r. Engelmann in PI. Wright. 1, pp.25 

 and 26), which, in L. Berlandieri, are membranous in the upper and inner 

 half. Cinder head of L. Berlandieri, Dr. Engelmann allude- to a small form 

 collected by Wright on the San Pedro River, which is apparently kept apart 

 from L. rigidum, var. puberulum (collected on the Cimarron), only by the 

 character of the false partition in the ovary, which is decidedly that of L. 

 Berlandieri. I have the precise form (from Santa I-Y he alludes to (so 

 far as can be determined from description), and have, from its partitions 

 and ovate-triangular-based filaments, been obliged to put it under L rigi- 

 dum, var. puberulum. Single specimens found by Dr. Loew at Rancheiro 

 Springs, Arizona. 



Li mm PEEENNE, L. — Widely diffused over Nevada, Utah, Colorado, 

 Arizona, and New Mexico, where it has been obtained by the Expedition; 

 extending, besides, from the Arctic Ocean to Mexico and west to the Pacific. 



MALPIGHIACE^E.* 



AuSPlCAEPAf longipes, Cray (PI. Wright. 1, p. 37). — Stems several, 



• M vi .i'hiiii \<i:. !:.—•• Calyx 5-merouB, persistent, segments usually biglandolar. Petals ">. usually 

 unguiculate, isostemouons, or diplostemouous, inserted either on the receptacle or ou a hypogynons or 

 perigynons disk. Btam< ds inserted with the petals, usually monodelphons, when several are anthcrless. 

 Ovary composed of I! ot 'J carpels, connate, or distinct at the top, of 3 or 2, 1-ovulcd cells, ovule nearly 

 orthotropons. I'mit a drupe or of 3-2 cocci. Embryo exalbnminons. Stem woody."— Lb Mum i & 

 in caisks | English edition). 



rASPICABPA, Lagaa.— Flowers dimorphous. Normal oiks: — Calyx 5-parted, with 10 glauds. 



I lawed. Qmbriate-Ciliate. Stamens .">,'.> perfect, 3 without anthers or the middle one of them with 

 B perfect anther, and the lateral ones with imperfect anthers. Ovaiies 3, connate to the axis. Btj ie 

 central, apex obliquely truncate. Fruit I [See Specific description.] Abnormal flowers:— Cah x without 



glands. Petals none. Anthers single and rudimentary. Ovaries 2, without styles. Nut solitary, either 

 crestlesa, or with l-:i slightly prominent dorsal crests. Irregularly pyramidal 3-anglod. Seed oompri 



siilinniform, testa lueinl rations, cotyledons ohovatc fiattish, curved. — Slander, erect, branching shrubs, 



with the branohleta frequently covered with sppressed hairs. Leav< b opposite, entire, frequently silky, 



Stipules inconspicuous. Stomal llou.r- mostTJ nnilielled. terminal or axillary, rarely Solitary, yellow ; 



nhi.iirinnl. axillary, solitary, very small.— Hkmium & Hooki r. 



