分枝

Unlike a leaf, a cladode has buds on its surface.

但节与节间明显，节上能分，生叶和开花。

Stem succulent, simple or divaricately branched from middle, lower nodes swollen, naked.

茎肉质，单或中间分，下部节膨胀，裸露。

Stem conspicuously striate or tetragonous, robust, succulent, simple or branched in upper part.

茎显著具条纹或4棱，粗壮，肉质，单一或分在上半部分。

Caudex branched, erect, to 2 cm in diam.Caudex leaves scalelike, triangular to subtriangular.

块根分，，在2厘米径块根离开鳞片，到近三角形三角形。

Herbs annual or biennial.Root stout, tuberlike, and napiform or fusiform, or branched and not tuberlike.

一年生或二年生草本根粗壮，管，和芜菁或纺锤形，或分而不管。

Basal leaves decussate; middle stem leaves opposite; distal stem leaves alternate; Inflorescence paniculiform with cymose branches.

基生叶交互对生；中间茎生叶对生；上部茎生叶互生；花圆锥花具聚伞分。

The characteristic of hyphae are regular width and septation with typical branching in acute angle (about 45 degrees) in PAS stain.

病理切片经由PAS染色清楚可见麴菌菌丝，其具有分隔，且分呈锐角，约45度角，为其特徵。

Tendril unbranched or bifurcate. Inflorescence usually a polychasium. Seeds elliptic, obovoid-elliptic, or obtriangular, surface smooth, corrugated, or with strumose protuberance or ribs.

卷须不分或二叉。通常花一多歧聚伞花。种子椭圆形，倒卵球形椭圆形，或倒三角形，平滑表面，具皱褶，或具瘤突起或肋。

Evolution is regarded as a branching process, whereby populations are altered over time and may speciate into separate branches, hybridize together, or terminate by extinction.

进化被视为一个分过程；随着时间推移，种群发生改变，种群也可能进化成为分，也可能相互杂交或灭绝终止。

A mutant, TS-N-121 was obtained by mutation and plate screening from a parent strain Mycobacterium fortuitum MF2 , which could transform sterol into androstanedione as the main product.

从雄甾二酮转化产生菌偶发分杆菌MF2出发,经紫外诱变结合平板筛选,获得一株主要转化生产睾酮突变株TS-N-121。

Stems caespitose, simple or many branched, 60-150 cm tall, ca. 1 cm in diam., antrorsely setulose, armed with spreading stinging hairs, dense in lower parts, sparser in upper parts.

丛生茎，单或多分，60-150厘米高，径约1厘米，向上地具小刚毛，具平展蛰毛刺，紧密在下部，稀在上半部分。